diff --git a/CHANGELOG.md b/CHANGELOG.md
index f26633b5..88205bb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,9 @@
 # Release Notes for Campaign
 
-## 2.7.1 - Unreleased
+## 2.7.1 - 2023-05-24
 ### Changed
 - Sendout previews now include template variables for the current sendout as well as a dummy contact ([#386](https://github.com/putyourlightson/craft-campaign/issues/386)).
+- Webhooks now return a successful response when receiving the email address of a contact that does not exist ([#388](https://github.com/putyourlightson/craft-campaign/issues/388)).
 
 ## 2.7.0 - 2023-05-13
 ### Added
diff --git a/src/controllers/WebhookController.php b/src/controllers/WebhookController.php
index ce30fea1..e4d78a20 100755
--- a/src/controllers/WebhookController.php
+++ b/src/controllers/WebhookController.php
@@ -298,7 +298,7 @@ private function _callWebhook(string $event, string $email = null): Response
         $contact = Campaign::$plugin->contacts->getContactByEmail($email);
 
         if ($contact === null) {
-            return $this->_asRawFailure('Contact not found.');
+            return $this->_asRawSuccess();
         }
 
         if ($event == 'complained') {
@@ -325,6 +325,8 @@ private function _asRawSuccess(string $message = ''): Response
      */
     private function _asRawFailure(string $message = ''): Response
     {
+        Campaign::$plugin->log($message, [], Logger::LEVEL_WARNING);
+
         return $this->asRaw(Craft::t('campaign', $message))
             ->setStatusCode(400);
     }
diff --git a/src/models/SettingsModel.php b/src/models/SettingsModel.php
index 36a2d51d..0cf12610 100644
--- a/src/models/SettingsModel.php
+++ b/src/models/SettingsModel.php
@@ -49,6 +49,7 @@ class SettingsModel extends Model
 
     /**
      * @var array|null The allowed IP addresses for incoming webhook requests from Postmark
+     * @link https://postmarkapp.com/support/article/800-ips-for-firewalls#webhooks
      * @since 1.19.0
      */
     public ?array $postmarkAllowedIpAddresses = [