symfony
diff --git a/‎src/Symfony/Component/Mailer/Bridge/Postmark/Transport/PostmarkApiTransport.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Mailer/Bridge/Postmark/Transport/PostmarkApiTransport.php
+1-1 b/‎src/Symfony/Component/Mailer/Bridge/Postmark/Transport/PostmarkApiTransport.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Mailer/Bridge/Postmark/Transport/PostmarkApiTransport.php
+1-1
@@ -147,7 +147,7 @@ private function getAttachments(Email $email): array
             ];
 
             if ('inline' === $disposition) {
-                $att['ContentID'] = 'cid:'.$filename;
+                $att['ContentID'] = 'cid:'.($attachment->hasContentId() ? $attachment->getContentId() : $filename);
             }
 
             $attachments[] = $att;
Original file line number	Diff line number	Diff line change
`@@ -147,7 +147,7 @@ private function getAttachments(Email $email): array`
`147`	`147`	`];`
`148`	`148`
`149`	`149`	`if ('inline' === $disposition) {`
`150`		`- $att['ContentID'] = 'cid:'.$filename;`
	`150`	`+ $att['ContentID'] = 'cid:'.($attachment->hasContentId() ? $attachment->getContentId() : $filename);`
`151`	`151`	`}`
`152`	`152`
`153`	`153`	`$attachments[] = $att;`