Where to edit SMTP reject/error codes?

[kez]

Hi there!

Is it possible to edit the SMTP reject/error codes to add a URL to our help guide?

Example;

Change:

554 5.7.1 Rejected for policy reasons (6143D671280A745134)

to:

554 5.7.1 Rejected for policy reasons (6143D671280A745134) please see https://example.com/errorcodes.html

Thanks,
C

 

[keeka]

There is postfix's smtpd_reject_footer

 

[kez]

There is postfix's smtpd_reject_footer

Thanks so much!
C