O'Reilly logo

Postfix: The Definitive Guide by Kyle D. Dent

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Name

relay_domains_reject_code

Possible values:

reply code

Default:

554

SMTP response code to send when a request is rejected due to a disallowed relay attempt.

Example:

relay_domains_reject_code = 554

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required