diff --git a/functions/src/create-notification.ts b/functions/src/create-notification.ts
index 84edf715..e2959dda 100644
--- a/functions/src/create-notification.ts
+++ b/functions/src/create-notification.ts
@@ -8,7 +8,7 @@ import { User } from '../../common/user'
 import { Contract } from '../../common/contract'
 import { getPrivateUser, getValues } from './utils'
 import { Comment } from '../../common/comment'
-import { uniq } from 'lodash'
+import { groupBy, uniq } from 'lodash'
 import { Bet, LimitBet } from '../../common/bet'
 import { Answer } from '../../common/answer'
 import { getContractBetMetrics } from '../../common/calculate'
@@ -23,6 +23,7 @@ import {
   sendNewAnswerEmail,
   sendNewCommentEmail,
   sendNewFollowedMarketEmail,
+  sendNewUniqueBettorsEmail,
 } from './emails'
 import { filterDefined } from '../../common/util/array'
 const firestore = admin.firestore()
@@ -774,44 +775,84 @@ export const createUniqueBettorBonusNotification = async (
   txnId: string,
   contract: Contract,
   amount: number,
+  uniqueBettorIds: string[],
   idempotencyKey: string
 ) => {
-  console.log('createUniqueBettorBonusNotification')
   const privateUser = await getPrivateUser(contractCreatorId)
   if (!privateUser) return
-  const { sendToBrowser } = await getDestinationsForUser(
+  const { sendToBrowser, sendToEmail } = await getDestinationsForUser(
     privateUser,
     'unique_bettors_on_your_contract'
   )
-  if (!sendToBrowser) return
-
-  const notificationRef = firestore
-    .collection(`/users/${contractCreatorId}/notifications`)
-    .doc(idempotencyKey)
-  const notification: Notification = {
-    id: idempotencyKey,
-    userId: contractCreatorId,
-    reason: 'unique_bettors_on_your_contract',
-    createdTime: Date.now(),
-    isSeen: false,
-    sourceId: txnId,
-    sourceType: 'bonus',
-    sourceUpdateType: 'created',
-    sourceUserName: bettor.name,
-    sourceUserUsername: bettor.username,
-    sourceUserAvatarUrl: bettor.avatarUrl,
-    sourceText: amount.toString(),
-    sourceSlug: contract.slug,
-    sourceTitle: contract.question,
-    // Perhaps not necessary, but just in case
-    sourceContractSlug: contract.slug,
-    sourceContractId: contract.id,
-    sourceContractTitle: contract.question,
-    sourceContractCreatorUsername: contract.creatorUsername,
+  if (sendToBrowser) {
+    const notificationRef = firestore
+      .collection(`/users/${contractCreatorId}/notifications`)
+      .doc(idempotencyKey)
+    const notification: Notification = {
+      id: idempotencyKey,
+      userId: contractCreatorId,
+      reason: 'unique_bettors_on_your_contract',
+      createdTime: Date.now(),
+      isSeen: false,
+      sourceId: txnId,
+      sourceType: 'bonus',
+      sourceUpdateType: 'created',
+      sourceUserName: bettor.name,
+      sourceUserUsername: bettor.username,
+      sourceUserAvatarUrl: bettor.avatarUrl,
+      sourceText: amount.toString(),
+      sourceSlug: contract.slug,
+      sourceTitle: contract.question,
+      // Perhaps not necessary, but just in case
+      sourceContractSlug: contract.slug,
+      sourceContractId: contract.id,
+      sourceContractTitle: contract.question,
+      sourceContractCreatorUsername: contract.creatorUsername,
+    }
+    await notificationRef.set(removeUndefinedProps(notification))
   }
-  return await notificationRef.set(removeUndefinedProps(notification))
 
-  // TODO send email notification
+  if (!sendToEmail) return
+  const uniqueBettorsExcludingCreator = uniqueBettorIds.filter(
+    (id) => id !== contractCreatorId
+  )
+  // only send on 1st and 6th bettor
+  if (
+    uniqueBettorsExcludingCreator.length !== 1 &&
+    uniqueBettorsExcludingCreator.length !== 6
+  )
+    return
+  const totalNewBettorsToReport =
+    uniqueBettorsExcludingCreator.length === 1 ? 1 : 5
+
+  const mostRecentUniqueBettors = await getValues<User>(
+    firestore
+      .collection('users')
+      .where(
+        'id',
+        'in',
+        uniqueBettorsExcludingCreator.slice(
+          uniqueBettorsExcludingCreator.length - totalNewBettorsToReport,
+          uniqueBettorsExcludingCreator.length
+        )
+      )
+  )
+
+  const bets = await getValues<Bet>(
+    firestore.collection('contracts').doc(contract.id).collection('bets')
+  )
+  // group bets by bettors
+  const bettorsToTheirBets = groupBy(bets, (bet) => bet.userId)
+  await sendNewUniqueBettorsEmail(
+    'unique_bettors_on_your_contract',
+    contractCreatorId,
+    privateUser,
+    contract,
+    uniqueBettorsExcludingCreator.length,
+    mostRecentUniqueBettors,
+    bettorsToTheirBets,
+    Math.round(amount * totalNewBettorsToReport)
+  )
 }
 
 export const createNewContractNotification = async (
diff --git a/functions/src/email-templates/new-unique-bettor.html b/functions/src/email-templates/new-unique-bettor.html
new file mode 100644
index 00000000..30da8b99
--- /dev/null
+++ b/functions/src/email-templates/new-unique-bettor.html
@@ -0,0 +1,397 @@
+<!DOCTYPE html>
+<html style="
+    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+    box-sizing: border-box;
+    font-size: 14px;
+    margin: 0;
+  ">
+
+<head>
+  <meta name="viewport" content="width=device-width" />
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+  <title>New unique predictors on your market</title>
+
+  <style type="text/css">
+    img {
+      max-width: 100%;
+    }
+
+    body {
+      -webkit-font-smoothing: antialiased;
+      -webkit-text-size-adjust: none;
+      width: 100% !important;
+      height: 100%;
+      line-height: 1.6em;
+    }
+
+    body {
+      background-color: #f6f6f6;
+    }
+
+    @media only screen and (max-width: 640px) {
+      body {
+        padding: 0 !important;
+      }
+
+      h1 {
+        font-weight: 800 !important;
+        margin: 20px 0 5px !important;
+      }
+
+      h2 {
+        font-weight: 800 !important;
+        margin: 20px 0 5px !important;
+      }
+
+      h3 {
+        font-weight: 800 !important;
+        margin: 20px 0 5px !important;
+      }
+
+      h4 {
+        font-weight: 800 !important;
+        margin: 20px 0 5px !important;
+      }
+
+      h1 {
+        font-size: 22px !important;
+      }
+
+      h2 {
+        font-size: 18px !important;
+      }
+
+      h3 {
+        font-size: 16px !important;
+      }
+
+      .container {
+        padding: 0 !important;
+        width: 100% !important;
+      }
+
+      .content {
+        padding: 0 !important;
+      }
+
+      .content-wrap {
+        padding: 10px !important;
+      }
+
+      .invoice {
+        width: 100% !important;
+      }
+    }
+  </style>
+</head>
+
+<body itemscope itemtype="http://schema.org/EmailMessage" style="
+      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+      box-sizing: border-box;
+      font-size: 14px;
+      -webkit-font-smoothing: antialiased;
+      -webkit-text-size-adjust: none;
+      width: 100% !important;
+      height: 100%;
+      line-height: 1.6em;
+      background-color: #f6f6f6;
+      margin: 0;
+    " bgcolor="#f6f6f6">
+  <table class="body-wrap" style="
+        font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+        box-sizing: border-box;
+        font-size: 14px;
+        width: 100%;
+        background-color: #f6f6f6;
+        margin: 0;
+      " bgcolor="#f6f6f6">
+    <tr style="
+          font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+          box-sizing: border-box;
+          font-size: 14px;
+          margin: 0;
+        ">
+      <td style="
+            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+            box-sizing: border-box;
+            font-size: 14px;
+            vertical-align: top;
+            margin: 0;
+          " valign="top"></td>
+      <td class="container" width="600" style="
+            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+            box-sizing: border-box;
+            font-size: 14px;
+            vertical-align: top;
+            display: block !important;
+            max-width: 600px !important;
+            clear: both !important;
+            margin: 0 auto;
+          " valign="top">
+        <div class="content" style="
+              font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+              box-sizing: border-box;
+              font-size: 14px;
+              max-width: 600px;
+              display: block;
+              margin: 0 auto;
+              padding: 20px;
+            ">
+          <table class="main" width="100%" cellpadding="0" cellspacing="0" style="
+                font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                box-sizing: border-box;
+                font-size: 14px;
+                border-radius: 3px;
+                background-color: #fff;
+                margin: 0;
+                border: 1px solid #e9e9e9;
+              " bgcolor="#fff">
+            <tr style="
+                  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                  box-sizing: border-box;
+                  font-size: 14px;
+                  margin: 0;
+                ">
+              <td class="content-wrap aligncenter" style="
+                    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                    box-sizing: border-box;
+                    font-size: 14px;
+                    vertical-align: top;
+                    text-align: center;
+                    margin: 0;
+                    padding: 20px;
+                  " align="center" valign="top">
+                <table width="100%" cellpadding="0" cellspacing="0" style="
+                      font-family: 'Helvetica Neue', Helvetica, Arial,
+                        sans-serif;
+                      box-sizing: border-box;
+                      font-size: 14px;
+                      margin: 0;
+                      width: 90%;
+                    ">
+                  <tr style="
+                        font-family: 'Helvetica Neue', Helvetica, Arial,
+                          sans-serif;
+                        box-sizing: border-box;
+                        font-size: 14px;
+                        margin: 0;
+                      ">
+                    <td class="content-block" style="
+                          font-family: 'Helvetica Neue', Helvetica, Arial,
+                            sans-serif;
+                          box-sizing: border-box;
+                          font-size: 16px;
+                          vertical-align: top;
+                          margin: 0;
+                          padding: 0 0 0px 0;
+                          text-align: left;
+                        " valign="top">
+                      <a href="https://manifold.markets" target="_blank">
+                        <img src="https://manifold.markets/logo-banner.png" width="300" style="height: auto"
+                          alt="Manifold Markets" />
+                      </a>
+                    </td>
+                  </tr>
+                  <tr>
+                    <td align="left"
+                        style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:0px;word-break:break-word;">
+                      <div
+                        style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:left;color:#000000;">
+                        <p class="text-build-content"
+                           style="line-height: 24px; margin: 10px 0; margin-top: 10px; margin-bottom: 10px;"
+                           data-testid="4XoHRGw1Y"><span
+                          style="color:#000000;font-family:Arial, Helvetica, sans-serif;font-size:18px;">
+                                                    </span>Hi {{name}},</p>
+                      </div>
+                    </td>
+                  </tr>
+                  <tr>
+                    <td align="left"
+                        style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                      <div
+                        style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:left;color:#000000;">
+                        <p class="text-build-content"
+                           style="line-height: 24px; margin: 10px 0; margin-top: 10px; margin-bottom: 10px;"
+                           data-testid="4XoHRGw1Y"><span
+                          style="color:#000000;font-family:Arial, Helvetica, sans-serif;font-size:18px;">
+                          Your market <a href='{{marketUrl}}'>{{marketTitle}}</a> just got its first prediction from a user!
+                          <br/>
+                          <br/>
+                          We sent you a <span style='color: #11b981'>{{bonusString}}</span> bonus for
+                          creating a market that appeals to others, and we'll do so for each new predictor.
+                          <br/>
+                          <br/>
+                          Keep up the good work and check out your newest predictor below!
+                        </span></p>
+                      </div>
+                    </td>
+                  </tr>
+                  <tr style="
+                        font-family: 'Helvetica Neue', Helvetica, Arial,
+                          sans-serif;
+                        box-sizing: border-box;
+                        font-size: 16px;
+                        margin: 0;
+                      ">
+                    <td class="content-block aligncenter" style="
+                          font-family: 'Helvetica Neue', Helvetica, Arial,
+                            sans-serif;
+                          box-sizing: border-box;
+                          font-size: 16px;
+                          vertical-align: top;
+                          text-align: center;
+                          margin: 0;
+                          padding: 0;
+                        " align="center" valign="top">
+                      <table class="invoice" style="
+                            font-family: 'Helvetica Neue', Helvetica, Arial,
+                              sans-serif;
+                            box-sizing: border-box;
+                            font-size: 16px;
+                            text-align: left;
+                            width: 80%;
+                            margin: 40px auto;
+                            margin-top: 10px;
+                          ">
+                        <tr style="
+                              font-family: 'Helvetica Neue', Helvetica, Arial,
+                                sans-serif;
+                              box-sizing: border-box;
+                              font-size: 16px;
+                              margin-top: 10px;
+                            ">
+                          <td style="
+                                font-family: 'Helvetica Neue', Helvetica, Arial,
+                                  sans-serif;
+                                box-sizing: border-box;
+                                font-size: 14px;
+                                margin: 0;
+                                padding: 10px 0;
+                              " valign="top">
+                            <div>
+                              <img src="{{bettor1AvatarUrl}}" width="30" height="30" style="
+                                    border-radius: 30px;
+                                    overflow: hidden;
+                                    vertical-align: middle;
+                                    margin-right: 4px;
+                                  " alt="" />
+                              <span style="font-weight: bold">{{bettor1Name}}</span>
+                              {{bet1Description}}
+                            </div>
+                          </td>
+                        </tr>
+                        <tr style="
+                              font-family: 'Helvetica Neue', Helvetica, Arial,
+                                sans-serif;
+                              box-sizing: border-box;
+                              font-size: 16px;
+                              margin: 0;
+                            ">
+                          <td style="padding: 20px 0 0 0; margin: 0">
+                            <div align="center">
+                              <!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="border-spacing: 0; border-collapse: collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;font-family:arial,helvetica,sans-serif;"><tr><td style="font-family:arial,helvetica,sans-serif;" align="center"><v:roundrect xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word" href="" style="height:37px; v-text-anchor:middle; width:110px;" arcsize="11%" stroke="f" fillcolor="#3AAEE0"><w:anchorlock/><center style="color:#FFFFFF;font-family:arial,helvetica,sans-serif;"><![endif]-->
+                              <a href="{{marketUrl}}" target="_blank" style="
+                                    box-sizing: border-box;
+                                    display: inline-block;
+                                    font-family: arial, helvetica, sans-serif;
+                                    text-decoration: none;
+                                    -webkit-text-size-adjust: none;
+                                    text-align: center;
+                                    color: #ffffff;
+                                    background-color: #11b981;
+                                    border-radius: 4px;
+                                    -webkit-border-radius: 4px;
+                                    -moz-border-radius: 4px;
+                                    width: auto;
+                                    max-width: 100%;
+                                    overflow-wrap: break-word;
+                                    word-break: break-word;
+                                    word-wrap: break-word;
+                                    mso-border-alt: none;
+                                  ">
+                                <span style="
+                                      display: block;
+                                      padding: 10px 20px;
+                                      line-height: 120%;
+                                    "><span style="
+                                        font-size: 16px;
+                                        font-weight: bold;
+                                        line-height: 18.8px;
+                                      ">View market</span></span>
+                              </a>
+                              <!--[if mso]></center></v:roundrect></td></tr></table><![endif]-->
+                            </div>
+                          </td>
+                        </tr>
+                      </table>
+                    </td>
+                  </tr>
+                </table>
+              </td>
+            </tr>
+          </table>
+          <div class="footer" style="
+                font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                box-sizing: border-box;
+                font-size: 14px;
+                width: 100%;
+                clear: both;
+                color: #999;
+                margin: 0;
+                padding: 20px;
+              ">
+            <table width="100%" style="
+                  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                  box-sizing: border-box;
+                  font-size: 14px;
+                  margin: 0;
+                ">
+              <tr style="
+                    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                    box-sizing: border-box;
+                    font-size: 14px;
+                    margin: 0;
+                  ">
+                <td class="aligncenter content-block" style="
+                      font-family: 'Helvetica Neue', Helvetica, Arial,
+                        sans-serif;
+                      box-sizing: border-box;
+                      font-size: 12px;
+                      vertical-align: top;
+                      color: #999;
+                      text-align: center;
+                      margin: 0;
+                      padding: 0 0 20px;
+                    " align="center" valign="top">
+                  Questions? Come ask in
+                  <a href="https://discord.gg/eHQBNBqXuh" style="
+                        font-family: 'Helvetica Neue', Helvetica, Arial,
+                          sans-serif;
+                        box-sizing: border-box;
+                        font-size: 12px;
+                        color: #999;
+                        text-decoration: underline;
+                        margin: 0;
+                      ">our Discord</a>! Or,
+                  <a href="{{unsubscribeUrl}}" style="
+                                          color: inherit;
+                                          text-decoration: none;
+                                        " target="_blank">click here to manage your notifications</a>.
+                </td>
+              </tr>
+            </table>
+          </div>
+        </div>
+      </td>
+      <td style="
+            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+            box-sizing: border-box;
+            font-size: 14px;
+            vertical-align: top;
+            margin: 0;
+          " valign="top"></td>
+    </tr>
+  </table>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/functions/src/email-templates/new-unique-bettors.html b/functions/src/email-templates/new-unique-bettors.html
new file mode 100644
index 00000000..eb4c04e2
--- /dev/null
+++ b/functions/src/email-templates/new-unique-bettors.html
@@ -0,0 +1,501 @@
+<!DOCTYPE html>
+<html style="
+    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+    box-sizing: border-box;
+    font-size: 14px;
+    margin: 0;
+  ">
+
+<head>
+  <meta name="viewport" content="width=device-width" />
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+  <title>New unique predictors on your market</title>
+
+  <style type="text/css">
+    img {
+      max-width: 100%;
+    }
+
+    body {
+      -webkit-font-smoothing: antialiased;
+      -webkit-text-size-adjust: none;
+      width: 100% !important;
+      height: 100%;
+      line-height: 1.6em;
+    }
+
+    body {
+      background-color: #f6f6f6;
+    }
+
+    @media only screen and (max-width: 640px) {
+      body {
+        padding: 0 !important;
+      }
+
+      h1 {
+        font-weight: 800 !important;
+        margin: 20px 0 5px !important;
+      }
+
+      h2 {
+        font-weight: 800 !important;
+        margin: 20px 0 5px !important;
+      }
+
+      h3 {
+        font-weight: 800 !important;
+        margin: 20px 0 5px !important;
+      }
+
+      h4 {
+        font-weight: 800 !important;
+        margin: 20px 0 5px !important;
+      }
+
+      h1 {
+        font-size: 22px !important;
+      }
+
+      h2 {
+        font-size: 18px !important;
+      }
+
+      h3 {
+        font-size: 16px !important;
+      }
+
+      .container {
+        padding: 0 !important;
+        width: 100% !important;
+      }
+
+      .content {
+        padding: 0 !important;
+      }
+
+      .content-wrap {
+        padding: 10px !important;
+      }
+
+      .invoice {
+        width: 100% !important;
+      }
+    }
+  </style>
+</head>
+
+<body itemscope itemtype="http://schema.org/EmailMessage" style="
+      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+      box-sizing: border-box;
+      font-size: 14px;
+      -webkit-font-smoothing: antialiased;
+      -webkit-text-size-adjust: none;
+      width: 100% !important;
+      height: 100%;
+      line-height: 1.6em;
+      background-color: #f6f6f6;
+      margin: 0;
+    " bgcolor="#f6f6f6">
+  <table class="body-wrap" style="
+        font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+        box-sizing: border-box;
+        font-size: 14px;
+        width: 100%;
+        background-color: #f6f6f6;
+        margin: 0;
+      " bgcolor="#f6f6f6">
+    <tr style="
+          font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+          box-sizing: border-box;
+          font-size: 14px;
+          margin: 0;
+        ">
+      <td style="
+            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+            box-sizing: border-box;
+            font-size: 14px;
+            vertical-align: top;
+            margin: 0;
+          " valign="top"></td>
+      <td class="container" width="600" style="
+            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+            box-sizing: border-box;
+            font-size: 14px;
+            vertical-align: top;
+            display: block !important;
+            max-width: 600px !important;
+            clear: both !important;
+            margin: 0 auto;
+          " valign="top">
+        <div class="content" style="
+              font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+              box-sizing: border-box;
+              font-size: 14px;
+              max-width: 600px;
+              display: block;
+              margin: 0 auto;
+              padding: 20px;
+            ">
+          <table class="main" width="100%" cellpadding="0" cellspacing="0" style="
+                font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                box-sizing: border-box;
+                font-size: 14px;
+                border-radius: 3px;
+                background-color: #fff;
+                margin: 0;
+                border: 1px solid #e9e9e9;
+              " bgcolor="#fff">
+            <tr style="
+                  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                  box-sizing: border-box;
+                  font-size: 14px;
+                  margin: 0;
+                ">
+              <td class="content-wrap aligncenter" style="
+                    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                    box-sizing: border-box;
+                    font-size: 14px;
+                    vertical-align: top;
+                    text-align: center;
+                    margin: 0;
+                    padding: 20px;
+                  " align="center" valign="top">
+                <table width="100%" cellpadding="0" cellspacing="0" style="
+                      font-family: 'Helvetica Neue', Helvetica, Arial,
+                        sans-serif;
+                      box-sizing: border-box;
+                      font-size: 14px;
+                      margin: 0;
+                      width: 90%;
+                    ">
+                  <tr style="
+                        font-family: 'Helvetica Neue', Helvetica, Arial,
+                          sans-serif;
+                        box-sizing: border-box;
+                        font-size: 14px;
+                        margin: 0;
+                      ">
+                    <td class="content-block" style="
+                          font-family: 'Helvetica Neue', Helvetica, Arial,
+                            sans-serif;
+                          box-sizing: border-box;
+                          font-size: 16px;
+                          vertical-align: top;
+                          margin: 0;
+                          padding: 0 0 0px 0;
+                          text-align: left;
+                        " valign="top">
+                      <a href="https://manifold.markets" target="_blank">
+                        <img src="https://manifold.markets/logo-banner.png" width="300" style="height: auto"
+                          alt="Manifold Markets" />
+                      </a>
+                    </td>
+                  </tr>
+                  <tr>
+                    <td align="left"
+                        style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:0px;word-break:break-word;">
+                      <div
+                        style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:left;color:#000000;">
+                        <p class="text-build-content"
+                           style="line-height: 24px; margin: 10px 0; margin-top: 10px; margin-bottom: 10px;"
+                           data-testid="4XoHRGw1Y"><span
+                          style="color:#000000;font-family:Arial, Helvetica, sans-serif;font-size:18px;">
+                                                    </span>Hi {{name}},</p>
+                      </div>
+                    </td>
+                  </tr>
+                  <tr>
+                    <td align="left"
+                        style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                      <div
+                        style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:left;color:#000000;">
+                        <p class="text-build-content"
+                           style="line-height: 24px; margin: 10px 0; margin-top: 10px; margin-bottom: 10px;"
+                           data-testid="4XoHRGw1Y"><span
+                          style="color:#000000;font-family:Arial, Helvetica, sans-serif;font-size:18px;">
+                          Your market <a href='{{marketUrl}}'>{{marketTitle}}</a> got predictions from a total of {{totalPredictors}} users!
+                          <br/>
+                          <br/>
+                          We sent you a <span style='color: #11b981'>{{bonusString}}</span> bonus for getting {{newPredictors}} new predictors,
+                          and we'll continue to do so for each new predictor, (although we won't send you any more emails about it for this market).
+                          <br/>
+                          <br/>
+                          Keep up the good work and check out your newest predictors below!
+                        </span></p>
+                      </div>
+                    </td>
+                  </tr>
+                  <tr style="
+                        font-family: 'Helvetica Neue', Helvetica, Arial,
+                          sans-serif;
+                        box-sizing: border-box;
+                        font-size: 16px;
+                        margin: 0;
+                      ">
+                    <td class="content-block aligncenter" style="
+                          font-family: 'Helvetica Neue', Helvetica, Arial,
+                            sans-serif;
+                          box-sizing: border-box;
+                          font-size: 16px;
+                          vertical-align: top;
+                          text-align: center;
+                          margin: 0;
+                          padding: 0;
+                        " align="center" valign="top">
+                      <table class="invoice" style="
+                            font-family: 'Helvetica Neue', Helvetica, Arial,
+                              sans-serif;
+                            box-sizing: border-box;
+                            font-size: 16px;
+                            text-align: left;
+                            width: 80%;
+                            margin: 40px auto;
+                            margin-top: 10px;
+                          ">
+                        <tr style="
+                              font-family: 'Helvetica Neue', Helvetica, Arial,
+                                sans-serif;
+                              box-sizing: border-box;
+                              font-size: 16px;
+                              margin-top: 10px;
+                            ">
+                          <td style="
+                                font-family: 'Helvetica Neue', Helvetica, Arial,
+                                  sans-serif;
+                                box-sizing: border-box;
+                                font-size: 14px;
+                                margin: 0;
+                                padding: 10px 0;
+                              " valign="top">
+                            <div>
+                              <img src="{{bettor1AvatarUrl}}" width="30" height="30" style="
+                                    border-radius: 30px;
+                                    overflow: hidden;
+                                    vertical-align: middle;
+                                    margin-right: 4px;
+                                  " alt="" />
+                              <span style="font-weight: bold">{{bettor1Name}}</span>
+                              {{bet1Description}}
+                            </div>
+                          </td>
+                        </tr><tr style="
+                              font-family: 'Helvetica Neue', Helvetica, Arial,
+                                sans-serif;
+                              box-sizing: border-box;
+                              font-size: 16px;
+                              margin-top: 10px;
+                            ">
+                          <td style="
+                                font-family: 'Helvetica Neue', Helvetica, Arial,
+                                  sans-serif;
+                                box-sizing: border-box;
+                                font-size: 14px;
+                                margin: 0;
+                                padding: 10px 0;
+                              " valign="top">
+                            <div>
+                              <img src="{{bettor2AvatarUrl}}" width="30" height="30" style="
+                                    border-radius: 30px;
+                                    overflow: hidden;
+                                    vertical-align: middle;
+                                    margin-right: 4px;
+                                  " alt="" />
+                              <span style="font-weight: bold">{{bettor2Name}}</span>
+                              {{bet2Description}}
+                            </div>
+                          </td>
+                        </tr><tr style="
+                              font-family: 'Helvetica Neue', Helvetica, Arial,
+                                sans-serif;
+                              box-sizing: border-box;
+                              font-size: 16px;
+                              margin-top: 10px;
+                            ">
+                          <td style="
+                                font-family: 'Helvetica Neue', Helvetica, Arial,
+                                  sans-serif;
+                                box-sizing: border-box;
+                                font-size: 14px;
+                                margin: 0;
+                                padding: 10px 0;
+                              " valign="top">
+                            <div>
+                              <img src="{{bettor3AvatarUrl}}" width="30" height="30" style="
+                                    border-radius: 30px;
+                                    overflow: hidden;
+                                    vertical-align: middle;
+                                    margin-right: 4px;
+                                  " alt="" />
+                              <span style="font-weight: bold">{{bettor3Name}}</span>
+                              {{bet3Description}}
+                            </div>
+                          </td>
+                        </tr><tr style="
+                              font-family: 'Helvetica Neue', Helvetica, Arial,
+                                sans-serif;
+                              box-sizing: border-box;
+                              font-size: 16px;
+                              margin-top: 10px;
+                            ">
+                          <td style="
+                                font-family: 'Helvetica Neue', Helvetica, Arial,
+                                  sans-serif;
+                                box-sizing: border-box;
+                                font-size: 14px;
+                                margin: 0;
+                                padding: 10px 0;
+                              " valign="top">
+                            <div>
+                              <img src="{{bettor4AvatarUrl}}" width="30" height="30" style="
+                                    border-radius: 30px;
+                                    overflow: hidden;
+                                    vertical-align: middle;
+                                    margin-right: 4px;
+                                  " alt="" />
+                              <span style="font-weight: bold">{{bettor4Name}}</span>
+                              {{bet4Description}}
+                            </div>
+                          </td>
+                        </tr><tr style="
+                              font-family: 'Helvetica Neue', Helvetica, Arial,
+                                sans-serif;
+                              box-sizing: border-box;
+                              font-size: 16px;
+                              margin-top: 10px;
+                            ">
+                          <td style="
+                                font-family: 'Helvetica Neue', Helvetica, Arial,
+                                  sans-serif;
+                                box-sizing: border-box;
+                                font-size: 14px;
+                                margin: 0;
+                                padding: 10px 0;
+                              " valign="top">
+                            <div>
+                              <img src="{{bettor5AvatarUrl}}" width="30" height="30" style="
+                                    border-radius: 30px;
+                                    overflow: hidden;
+                                    vertical-align: middle;
+                                    margin-right: 4px;
+                                  " alt="" />
+                              <span style="font-weight: bold">{{bettor5Name}}</span>
+                              {{bet5Description}}
+                            </div>
+                          </td>
+                        </tr>
+                        <tr style="
+                              font-family: 'Helvetica Neue', Helvetica, Arial,
+                                sans-serif;
+                              box-sizing: border-box;
+                              font-size: 16px;
+                              margin: 0;
+                            ">
+                          <td style="padding: 20px 0 0 0; margin: 0">
+                            <div align="center">
+                              <!--[if mso]><table width="100%" cellpadding="0" cellspacing="0" border="0" style="border-spacing: 0; border-collapse: collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;font-family:arial,helvetica,sans-serif;"><tr><td style="font-family:arial,helvetica,sans-serif;" align="center"><v:roundrect xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word" href="" style="height:37px; v-text-anchor:middle; width:110px;" arcsize="11%" stroke="f" fillcolor="#3AAEE0"><w:anchorlock/><center style="color:#FFFFFF;font-family:arial,helvetica,sans-serif;"><![endif]-->
+                              <a href="{{marketUrl}}" target="_blank" style="
+                                    box-sizing: border-box;
+                                    display: inline-block;
+                                    font-family: arial, helvetica, sans-serif;
+                                    text-decoration: none;
+                                    -webkit-text-size-adjust: none;
+                                    text-align: center;
+                                    color: #ffffff;
+                                    background-color: #11b981;
+                                    border-radius: 4px;
+                                    -webkit-border-radius: 4px;
+                                    -moz-border-radius: 4px;
+                                    width: auto;
+                                    max-width: 100%;
+                                    overflow-wrap: break-word;
+                                    word-break: break-word;
+                                    word-wrap: break-word;
+                                    mso-border-alt: none;
+                                  ">
+                                <span style="
+                                      display: block;
+                                      padding: 10px 20px;
+                                      line-height: 120%;
+                                    "><span style="
+                                        font-size: 16px;
+                                        font-weight: bold;
+                                        line-height: 18.8px;
+                                      ">View market</span></span>
+                              </a>
+                              <!--[if mso]></center></v:roundrect></td></tr></table><![endif]-->
+                            </div>
+                          </td>
+                        </tr>
+                      </table>
+                    </td>
+                  </tr>
+                </table>
+              </td>
+            </tr>
+          </table>
+          <div class="footer" style="
+                font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                box-sizing: border-box;
+                font-size: 14px;
+                width: 100%;
+                clear: both;
+                color: #999;
+                margin: 0;
+                padding: 20px;
+              ">
+            <table width="100%" style="
+                  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                  box-sizing: border-box;
+                  font-size: 14px;
+                  margin: 0;
+                ">
+              <tr style="
+                    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+                    box-sizing: border-box;
+                    font-size: 14px;
+                    margin: 0;
+                  ">
+                <td class="aligncenter content-block" style="
+                      font-family: 'Helvetica Neue', Helvetica, Arial,
+                        sans-serif;
+                      box-sizing: border-box;
+                      font-size: 12px;
+                      vertical-align: top;
+                      color: #999;
+                      text-align: center;
+                      margin: 0;
+                      padding: 0 0 20px;
+                    " align="center" valign="top">
+                  Questions? Come ask in
+                  <a href="https://discord.gg/eHQBNBqXuh" style="
+                        font-family: 'Helvetica Neue', Helvetica, Arial,
+                          sans-serif;
+                        box-sizing: border-box;
+                        font-size: 12px;
+                        color: #999;
+                        text-decoration: underline;
+                        margin: 0;
+                      ">our Discord</a>! Or,
+                  <a href="{{unsubscribeUrl}}" style="
+                                          color: inherit;
+                                          text-decoration: none;
+                                        " target="_blank">click here to manage your notifications</a>.
+                </td>
+              </tr>
+            </table>
+          </div>
+        </div>
+      </td>
+      <td style="
+            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+            box-sizing: border-box;
+            font-size: 14px;
+            vertical-align: top;
+            margin: 0;
+          " valign="top"></td>
+    </tr>
+  </table>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/functions/src/emails.ts b/functions/src/emails.ts
index da6a5b41..adeb3d12 100644
--- a/functions/src/emails.ts
+++ b/functions/src/emails.ts
@@ -22,6 +22,7 @@ import {
   notification_reason_types,
   getDestinationsForUser,
 } from '../../common/notification'
+import { Dictionary } from 'lodash'
 
 export const sendMarketResolutionEmail = async (
   reason: notification_reason_types,
@@ -544,3 +545,63 @@ export const sendNewFollowedMarketEmail = async (
     }
   )
 }
+export const sendNewUniqueBettorsEmail = async (
+  reason: notification_reason_types,
+  userId: string,
+  privateUser: PrivateUser,
+  contract: Contract,
+  totalPredictors: number,
+  newPredictors: User[],
+  userBets: Dictionary<[Bet, ...Bet[]]>,
+  bonusAmount: number
+) => {
+  const { sendToEmail, urlToManageThisNotification: unsubscribeUrl } =
+    await getDestinationsForUser(privateUser, reason)
+  if (!privateUser.email || !sendToEmail) return
+  const user = await getUser(privateUser.id)
+  if (!user) return
+
+  const { name } = user
+  const firstName = name.split(' ')[0]
+  const creatorName = contract.creatorName
+  // make the emails stack for the same contract
+  const subject = `You made a popular market! ${
+    contract.question.length > 50
+      ? contract.question.slice(0, 50) + '...'
+      : contract.question
+  } just got ${
+    newPredictors.length
+  } new predictions. Check out who's betting on it inside.`
+  const templateData: Record<string, string> = {
+    name: firstName,
+    creatorName,
+    totalPredictors: totalPredictors.toString(),
+    bonusString: formatMoney(bonusAmount),
+    marketTitle: contract.question,
+    marketUrl: contractUrl(contract),
+    unsubscribeUrl,
+    newPredictors: newPredictors.length.toString(),
+  }
+
+  newPredictors.forEach((p, i) => {
+    templateData[`bettor${i + 1}Name`] = p.name
+    if (p.avatarUrl) templateData[`bettor${i + 1}AvatarUrl`] = p.avatarUrl
+    const bet = userBets[p.id][0]
+    if (bet) {
+      const { amount, sale } = bet
+      templateData[`bet${i + 1}Description`] = `${
+        sale || amount < 0 ? 'sold' : 'bought'
+      } ${formatMoney(Math.abs(amount))}`
+    }
+  })
+
+  return await sendTemplateEmail(
+    privateUser.email,
+    subject,
+    newPredictors.length === 1 ? 'new-unique-bettor' : 'new-unique-bettors',
+    templateData,
+    {
+      from: `Manifold Markets <no-reply@manifold.markets>`,
+    }
+  )
+}
diff --git a/functions/src/on-create-bet.ts b/functions/src/on-create-bet.ts
index 5dbebfc3..f2c6b51a 100644
--- a/functions/src/on-create-bet.ts
+++ b/functions/src/on-create-bet.ts
@@ -28,8 +28,9 @@ import { User } from '../../common/user'
 const firestore = admin.firestore()
 const BONUS_START_DATE = new Date('2022-07-13T15:30:00.000Z').getTime()
 
-export const onCreateBet = functions.firestore
-  .document('contracts/{contractId}/bets/{betId}')
+export const onCreateBet = functions
+  .runWith({ secrets: ['MAILGUN_KEY'] })
+  .firestore.document('contracts/{contractId}/bets/{betId}')
   .onCreate(async (change, context) => {
     const { contractId } = context.params as {
       contractId: string
@@ -198,6 +199,7 @@ const updateUniqueBettorsAndGiveCreatorBonus = async (
       result.txn.id,
       contract,
       result.txn.amount,
+      newUniqueBettorIds,
       eventId + '-unique-bettor-bonus'
     )
   }
diff --git a/web/components/notification-settings.tsx b/web/components/notification-settings.tsx
index 65804991..128a89ef 100644
--- a/web/components/notification-settings.tsx
+++ b/web/components/notification-settings.tsx
@@ -60,11 +60,14 @@ export function NotificationSettings(props: {
 
     'tagged_user', // missing tagged on contract description email
     'contract_from_followed_user',
+    'unique_bettors_on_your_contract',
     // TODO: add these
+    // one-click unsubscribe only unsubscribes them from that type only, (well highlighted), then a link to manage the rest of their notifications
+    // 'profit_loss_updates', - changes in markets you have shares in
+    // biggest winner, here are the rest of your markets
+
     // 'referral_bonuses',
-    // 'unique_bettors_on_your_contract',
     // 'on_new_follow',
-    // 'profit_loss_updates',
     // 'tips_on_your_markets',
     // 'tips_on_your_comments',
     // maybe the following?