diff --git a/core/components/sendex/docs/changelog.txt b/core/components/sendex/docs/changelog.txt
index 9c5a02d..f0f27f8 100644
--- a/core/components/sendex/docs/changelog.txt
+++ b/core/components/sendex/docs/changelog.txt
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [#111] Mgr row-action and menu icons no longer force `font-family: "Font Awesome 5 Free"` (Sendex does not load FA5); icons inherit the mgr icon font on MODX 2.3+/3.x or bundled FA4 on older MODX.
 - [#25666] Transport package built on MODX 3.x stored vehicle class as `xPDO\Transport\xPDOObjectVehicle`, which MODX 2.8.8/2.8.9 cannot load (install fails with ~30 "Could not load class" errors). Release build now runs on MODX 2.x so the manifest uses the legacy vehicle format that installs on both MODX 2.8+ and 3.x.
 - Queue claim columns (`claimed_at`, `attempts`, `expires_at`) are ensured on Sendex bootstrap when Phinx did not apply `#105` migration, avoiding `Unknown column sxQueue.claimed_at` on live upgrades.
+- [#123] Queue send resolves From/Reply headers from the linked newsletter at delivery time, so correcting `email_from` in mgr applies to pending queue rows instead of the stale snapshot from `addQueues`.
 
 ## [2.0.0-pl] - 2026-07-25
 
diff --git a/core/components/sendex/model/sendex/sxnewslettermailer.class.php b/core/components/sendex/model/sendex/sxnewslettermailer.class.php
index 69b4239..c25c121 100644
--- a/core/components/sendex/model/sendex/sxnewslettermailer.class.php
+++ b/core/components/sendex/model/sendex/sxnewslettermailer.class.php
@@ -8,7 +8,8 @@
  * Post-#62 mail paths (issue originally named sxNewsletter::send/checkEmail):
  * - activation: snippet → Sendex::sendEmail → buildActivationMessage
  * - queue build: sxNewsletterQueueBuilder::addQueues → compact row (headers only)
- * - queue send: sxQueueSender::deliverMail → messageFromQueue (+ sxQueueBodyRenderer when body empty)
+ * - queue send: sxQueueSender::deliverMail → messageFromQueue (+ sxQueueBodyRenderer when body empty).
+ *   From/Reply headers come from the linked newsletter at send time (#123), not the queue snapshot.
  */
 class sxNewsletterMailer
 {
@@ -107,13 +108,22 @@ public static function messageFromQueue($queue)
             $body = $rendered;
         }
 
+        $headers = self::resolveHeaders($queue, $queue->xpdo);
+        $newsletterId = (int) self::readField($queue, 'newsletter_id');
+        if ($newsletterId > 0) {
+            $newsletter = $queue->xpdo->getObject('sxNewsletter', $newsletterId);
+            if ($newsletter) {
+                $headers = self::resolveHeaders($newsletter, $queue->xpdo);
+            }
+        }
+
         return array(
             'email_to'        => self::sanitizeHeader(self::readField($queue, 'email_to')),
             'email_body'      => $body,
-            'email_from'      => self::sanitizeHeader(self::readField($queue, 'email_from')),
-            'email_from_name' => self::sanitizeHeader(self::readField($queue, 'email_from_name')),
+            'email_from'      => $headers['email_from'],
+            'email_from_name' => $headers['email_from_name'],
             'email_subject'   => self::readField($queue, 'email_subject'),
-            'email_reply'     => self::sanitizeHeader(self::readField($queue, 'email_reply')),
+            'email_reply'     => $headers['email_reply'],
         );
     }
 
diff --git a/tests/Unit/NewsletterMailerTest.php b/tests/Unit/NewsletterMailerTest.php
index 9e9d402..b83dfeb 100644
--- a/tests/Unit/NewsletterMailerTest.php
+++ b/tests/Unit/NewsletterMailerTest.php
@@ -178,6 +178,36 @@ public function testMessageFromQueueSanitizesHeaderFields()
         $this->assertSame('reply@example.com Bcc:bad@example.com', $message['email_reply']);
     }
 
+    public function testMessageFromQueueUsesNewsletterHeadersWhenLinked()
+    {
+        $newsletter = new TestableNewsletter($this->modx);
+        $newsletter->set('id', 10);
+        $newsletter->set('email_from', 'fixed@example.com');
+        $newsletter->set('email_from_name', 'Fixed Sender');
+        $newsletter->set('email_reply', 'reply-fixed@example.com');
+        $this->modx->newsletters[10] = $newsletter;
+
+        $queue = new sxQueue($this->modx);
+        $queue->fromArray(array(
+            'id'              => 1,
+            'newsletter_id'   => 10,
+            'subscriber_id'   => 1,
+            'email_to'        => 'to@example.com',
+            'email_subject'   => 'Subject',
+            'email_body'      => 'Body',
+            'email_from'      => 'bad-address',
+            'email_from_name' => 'Old Name',
+            'email_reply'     => 'bad-reply',
+        ));
+
+        $message = sxNewsletterMailer::messageFromQueue($queue);
+
+        $this->assertSame('fixed@example.com', $message['email_from']);
+        $this->assertSame('Fixed Sender', $message['email_from_name']);
+        $this->assertSame('reply-fixed@example.com', $message['email_reply']);
+        $this->assertSame('Subject', $message['email_subject']);
+    }
+
     public function testSanitizeHeaderStripsControlCharacters()
     {
         $this->assertSame('from@example.comBcc:bad@example.com', sxNewsletterMailer::sanitizeHeader("from@example.com\x00Bcc:bad@example.com"));