Re: Change error messages returned by Postfix

[Wietse Venema]

Wietse Venema:
> Instead of making every response configurable, a more practical
> solution is to configure ONE response that gets appended to ALL
> the SMTP server's reject messages. Effectively, this turns the
> one-line reject into a two-line response, one chosen by Postfix
> and one chosen by the system adminstrator.

I have added this yesterday to Postfix 2.8. This provides a fixed
text that is added as an extra line to server responses.

        Wietse

smtpd_reject_contact_information (default: empty)
       Optional contact information that is appended after  each  SMTP  server
       4XX or 5XX response.

       Example:

       /etc/postfix/main.cf:
           smtpd_reject_contact_information = For assistance, call 800-555-0101

       Server response:

       550-5.5.1 <u...@example&gt: Recipient address rejected: User unknown
       550 5.5.1 For assistance, call 800-555-0101

       This feature is available in Postfix 2.8.