diff --git a/app/mailers/digest_mailer.rb b/app/mailers/digest_mailer.rb
index 08c1c9bf5..52ae792e4 100644
--- a/app/mailers/digest_mailer.rb
+++ b/app/mailers/digest_mailer.rb
@@ -7,6 +7,7 @@ class DigestMailer < ApplicationMailer
     @billboards = params[:billboards]
     @unsubscribe = generate_unsubscribe_token(@user.id, :email_digest_periodic)
 
+    @subheader_variant = field_test(:digest_subheader_03_18, participant: @user)
     subject = generate_title
 
     # set sendgrid category in the header using smtp api
diff --git a/app/views/mailers/digest_mailer/digest_email.html.erb b/app/views/mailers/digest_mailer/digest_email.html.erb
index 4c3dc2fdb..b92a11fd6 100644
--- a/app/views/mailers/digest_mailer/digest_email.html.erb
+++ b/app/views/mailers/digest_mailer/digest_email.html.erb
@@ -8,12 +8,49 @@
             <h1 style="margin: 0; font-size: 24px; color: #333;"> <%= community_name %> Digest </h1>
           </td>
         </tr>
-
-        <!-- Subheader -->
         <tr>
-          <td bgcolor="#F8F8F8" style="padding: 8px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px;">
-            Recent community posts just for you
-          </td>
+          <% case @subheader_variant %>
+          <% when "just_for_you" %>
+            <td bgcolor="#F8F8F8" style="padding: 8px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px;">
+              Hey <%= @user.name %>, here are some recent community posts just for you.
+            </td>
+          <% when "just_for_you_with_branding" %>
+            <td bgcolor="#F8F8F8" style="padding: 14px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px; border: 3px solid <%= Settings::UserExperience.primary_brand_color_hex %>; font-weight: bold;">
+              Hey <%= @user.name %>, here are some recent community posts just for you.
+            </td>
+          <% when "get_caught_up" %>
+            <td bgcolor="#F8F8F8" style="padding: 8px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px;">
+              Hey <%= @user.name %>, let's get you caught up!
+            </td>
+          <% when "get_caught_up_with_branding" %>
+            <td bgcolor="#F8F8F8" style="padding: 14px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px; border: 3px solid <%= Settings::UserExperience.primary_brand_color_hex %>; font-weight: bold;">
+              Hey <%= @user.name %>, let's get you caught up!
+            </td>
+          <% when "whats_trending" %>
+            <td bgcolor="#F8F8F8" style="padding: 8px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px;">
+              Hey <%= @user.name %>, find out what's trending!
+            </td>
+          <% when "whats_trending_with_branding" %>
+            <td bgcolor="#F8F8F8" style="padding: 14px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px; border: 3px solid <%= Settings::UserExperience.primary_brand_color_hex %>; font-weight: bold;">
+              Hey <%= @user.name %>, find out what's trending!
+            </td>
+          <% when "dont_miss_out" %>
+            <td bgcolor="#F8F8F8" style="padding: 8px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px;">
+              Hey <%= @user.name %>, don't miss out!
+            </td>
+          <% when "dont_miss_out_with_branding" %>
+            <td bgcolor="#F8F8F8" style="padding: 14px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px; border: 3px solid <%= Settings::UserExperience.primary_brand_color_hex %>; font-weight: bold;">
+              Hey <%= @user.name %>, don't miss out!
+            </td>
+          <% when "base" %>
+            <td bgcolor="#F8F8F8" style="padding: 8px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px;">
+              Recent community posts just for you
+            </td>
+          <% when "base_with_branding" %>
+            <td bgcolor="#F8F8F8" style="padding: 14px; text-align: center; color: #3a3c3d; font-size: 16px;border-radius: 12px; border: 3px solid <%= Settings::UserExperience.primary_brand_color_hex %>; font-weight: bold;">
+              Recent community posts just for you
+            </td>
+          <% end %>
         </tr>
 
         <% if @billboards&.first&.present? %>
diff --git a/config/field_test.yml b/config/field_test.yml
index b951c14f8..a3ab5e9bd 100644
--- a/config/field_test.yml
+++ b/config/field_test.yml
@@ -27,6 +27,35 @@
 ################################################################################
 ################################################################################
 experiments:
+  digest_subheader_03_18:
+    started_at: 2024-04-15
+    variants:
+      - base
+      - base_with_branding
+      - just_for_you
+      - just_for_you_with_branding
+      - get_caught_up
+      - get_caught_up_with_branding
+      - whats_trending
+      - whats_trending_with_branding
+      - dont_miss_out
+      - dont_miss_out_with_branding
+    weights:
+      - 10
+      - 10
+      - 10
+      - 10
+      - 10
+      - 10
+      - 10
+      - 10
+      - 10
+      - 10
+    goals:
+      - user_creates_pageview
+      - user_creates_article_reaction
+      - user_views_pages_on_at_least_two_different_days_within_a_week
+      - user_views_pages_on_at_least_four_different_days_within_a_week
   digest_count_03_18:
     started_at: 2024-03-18
     ended_at: 2024-03-28