diff --git a/app/code/core/Mage/Newsletter/Model/Subscriber.php b/app/code/core/Mage/Newsletter/Model/Subscriber.php
index 13b4e73685f..d0dceb92fd0 100644
--- a/app/code/core/Mage/Newsletter/Model/Subscriber.php
+++ b/app/code/core/Mage/Newsletter/Model/Subscriber.php
@@ -355,7 +355,14 @@ public function subscribe($email)
 
             $this->setSubscriberEmail($email);
         } elseif ($this->getStatus() == self::STATUS_SUBSCRIBED) {
-            Mage::throwException(Mage::helper('newsletter')->__('This email address is already registered.'));
+            // Allow resubscription if user is subscribing their own email
+            if (!$isSubscribeOwnEmail) {
+                Mage::throwException(Mage::helper('newsletter')->__('This email address is already registered.'));
+            }
+
+            // User is resubscribing their own email that's already subscribed
+            // Return early to avoid unnecessary save() and duplicate confirmation emails
+            return $this->getStatus();
         }
 
         if ($isSubscribeOwnEmail) {