diff --git a/app/assets/javascripts/admin/addon/templates/email-sent.hbs b/app/assets/javascripts/admin/addon/templates/email-sent.hbs
index ba28a0219e4..9f62aadc38f 100644
--- a/app/assets/javascripts/admin/addon/templates/email-sent.hbs
+++ b/app/assets/javascripts/admin/addon/templates/email-sent.hbs
@@ -7,6 +7,7 @@
         <th>{{i18n "admin.email.to_address"}}</th>
         <th>{{i18n "admin.email.email_type"}}</th>
         <th>{{i18n "admin.email.reply_key"}}</th>
+        <th>{{i18n "admin.email.post_link_with_smtp"}}</th>
       </tr>
     </thead>
     <tbody>
@@ -16,6 +17,7 @@
         <td><TextField @value={{this.filter.address}} @placeholderKey="admin.email.logs.filters.address_placeholder" /></td>
         <td><TextField @value={{this.filter.type}} @placeholderKey="admin.email.logs.filters.type_placeholder" /></td>
         <td><TextField @value={{this.filter.reply_key}} @placeholderKey="admin.email.logs.filters.reply_key_placeholder" /></td>
+        <td></td>
       </tr>
 
       {{#each this.model as |l|}}
@@ -34,13 +36,14 @@
             <a href="mailto:{{l.to_address}}">{{l.to_address}}</a>
           </td>
           <td class="sent-email-type">{{l.email_type}}</td>
-          <td class="sent-email-post-link">
+          <td class="sent-email-reply-key">
+            <span title={{l.reply_key}} class="reply-key">{{l.reply_key}}</span>
+          </td>
+          <td class="sent-email-post-link-with-smtp-response">
             {{#if l.post_url}}
-              <a href={{l.post_url}}>{{l.post_description}}</a>
-              <span class="reply-key">{{l.reply_key}}</span>
-            {{else}}
-              <span class="reply-key">{{l.reply_key}}</span>
+              <a href={{l.post_url}}>{{l.post_description}}</a><br>
             {{/if}}
+            <code title={{l.smtp_transaction_response}}>{{l.smtp_transaction_response}}</code>
           </td>
         </tr>
       {{else}}
diff --git a/app/assets/stylesheets/common/admin/emails.scss b/app/assets/stylesheets/common/admin/emails.scss
index 58d1720a7a1..0b6b9e76a24 100644
--- a/app/assets/stylesheets/common/admin/emails.scss
+++ b/app/assets/stylesheets/common/admin/emails.scss
@@ -105,3 +105,27 @@
     font-family: monospace;
   }
 }
+
+.admin-email {
+  .email-list {
+    .sent-email-reply-key {
+      .reply-key {
+        word-break: break-word;
+        white-space: nowrap;
+        overflow: hidden;
+        text-overflow: ellipsis;
+        width: 125px;
+      }
+    }
+
+    .sent-email-post-link-with-smtp-response {
+      width: 100%;
+      display: inline-block;
+      word-break: break-word;
+
+      code {
+        font-size: var(--font-down-2);
+      }
+    }
+  }
+}
diff --git a/app/controllers/admin/email_controller.rb b/app/controllers/admin/email_controller.rb
index 8d54a2b4e4f..b56f10f9f68 100644
--- a/app/controllers/admin/email_controller.rb
+++ b/app/controllers/admin/email_controller.rb
@@ -240,6 +240,11 @@ class Admin::EmailController < Admin::AdminController
     logs = logs.where("users.username ILIKE ?", "%#{params[:user]}%") if params[:user].present?
     logs = logs.where("#{table_name}.to_address ILIKE ?", "%#{params[:address]}%") if params[:address].present?
     logs = logs.where("#{table_name}.email_type ILIKE ?", "%#{params[:type]}%") if params[:type].present?
+
+    if table_name == "email_logs" && params[:smtp_transaction_response].present?
+      logs = logs.where("#{table_name}.smtp_transaction_response ILIKE ?", "%#{params[:smtp_transaction_response]}%")
+    end
+
     logs
   end
 
diff --git a/app/serializers/email_log_serializer.rb b/app/serializers/email_log_serializer.rb
index 2744d19a317..803a55c2e56 100644
--- a/app/serializers/email_log_serializer.rb
+++ b/app/serializers/email_log_serializer.rb
@@ -5,7 +5,8 @@ class EmailLogSerializer < ApplicationSerializer
 
   attributes :reply_key,
              :bounced,
-             :has_bounce_key
+             :has_bounce_key,
+             :smtp_transaction_response
 
   has_one :user, serializer: BasicUserSerializer, embed: :objects
 
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index 3bf0e5b6375..a41ac41bb29 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -4895,6 +4895,7 @@ en:
         last_seen_user: "Last Seen User:"
         no_result: "No results found for summary."
         reply_key: "Reply Key"
+        post_link_with_smtp: "Post & SMTP Details"
         skipped_reason: "Skip Reason"
         incoming_emails:
           from_address: "From"
@@ -4924,6 +4925,7 @@ en:
             address_placeholder: "name@example.com"
             type_placeholder: "digest, signup..."
             reply_key_placeholder: "reply key"
+            smtp_transaction_response_placeholder: "SMTP ID"
 
       moderation_history:
         performed_by: "Performed By"
diff --git a/spec/requests/admin/email_controller_spec.rb b/spec/requests/admin/email_controller_spec.rb
index 7aae7eba1cc..8778f8cc964 100644
--- a/spec/requests/admin/email_controller_spec.rb
+++ b/spec/requests/admin/email_controller_spec.rb
@@ -84,6 +84,23 @@ RSpec.describe Admin::EmailController do
         expect(logs.first["reply_key"]).to eq(post_reply_key_2.reply_key)
       end
     end
+
+    it 'should be able to filter by smtp_transaction_response' do
+      email_log_2 = Fabricate(:email_log, smtp_transaction_response: <<~RESPONSE)
+      250 Ok: queued as pYoKuQ1aUG5vdpgh-k2K11qcpF4C1ZQ5qmvmmNW25SM=@mailhog.example
+      RESPONSE
+
+      get "/admin/email/sent.json", params: {
+        smtp_transaction_response: "pYoKu"
+      }
+
+      expect(response.status).to eq(200)
+
+      logs = response.parsed_body
+
+      expect(logs.size).to eq(1)
+      expect(logs.first["smtp_transaction_response"]).to eq(email_log_2.smtp_transaction_response)
+    end
   end
 
   describe '#skipped' do