On 8/29/2012 2:35 AM, an...@isac.gov.in wrote: > > Does header_check works only after completely queuing the mail? I > am using 2.6.13 version of postfix?
The header_checks FILTER action changes the outgoing behavior by setting the next-hop delivery destination. Before the mail is queued, it can be rejected for other reasons. The FILTER action does not prevent other rules from rejecting the message. -- Noel Jones