On Wed, 3 Sep 2008, Raymond Keller wrote:
/^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$/ 554 RFC 2821 does not allow bare address literals.
FYI- This can be shortened a bit more: /^(?:\d{1,3}\.){3}\d{1,3}$/ REJECT RFC 2821 does not allow bare address literals. Also, I don't see under: http://www.postfix.org/header_checks.5.html where your action of 554 is valid. You should be using REJECT instead. -d