On Tue, Nov 09, 2010 at 10:11:00AM -0500, Victor Duchovni wrote: > On Tue, Nov 09, 2010 at 03:52:33PM +0100, Louis-David Mitterrand wrote: > > > On Tue, Nov 09, 2010 at 09:44:55AM -0500, Victor Duchovni wrote: > > > On Tue, Nov 09, 2010 at 03:37:33PM +0100, Louis-David Mitterrand wrote: > > > > > > > I get a match from postmap. Yet postfix does not block the message... > > > > > > You have disabled header checks via "receive_override_options" or by > > > overriding "header_checks" in master.cf, ... > > > > I have neither of those in my config. Other rules in the same > > header_checks file work fine. > > Well, there is no magic. Some earlier rule may be matching this header, or > your header checks are not what you think they are, or they are disabled > or the header is subtly different from your pattern.
You were right. After digging in our long list of rules I found an OK that matches before that REJECT. Thanks for pointing me in the right direction, and to Vincent Lefevre for his valid suggestion (not in this case though).