On Mon, Apr 04, 2011 at 06:33:20PM -0700, email builder wrote: > I am testing a simple header_check that uses PREPEND to add a > custom header to messages.
Uh, no, I think it is not simple at all. Is this the same issue you're working on? You have spent much time, and gotten much help, none of which is actually getting you closer to the ultimate goal (whatever it may be, you really did not say.) At some point you should ask: is it more difficult to keep on this path, or to buck the OS packaging system and *upgrade* to a recent Postfix version which probably CAN do what you want. Since you mentioned 2.3.3 somewhere, I suppose that means RHEL or CentOS. Fortunately it is very easy to use a SRPM and rpmbuild(1). Simon Mudd maintains recent Postfix SRPMs. Go for 2.8.2 if he has posted that one already. Disable any automated upgrades. Those have no place on any kind of server anyway. Why the fear of leaving the OS package? > What am I missing? As I mentioned last night in the other thread, OVERVIEW.html has Postfix's big picture, which might prevent you from wasting time working on things which are not possible. If you're going to stay with the ancient version, use its copy of the documentation, so as to avoid the "This feature is available in Postfix 2.4 and later" gotchas. As Jeroen mentioned in the second thread, you will do better here with complete problem and goal descriptions. All we know are the wacky, unworkable hacks you are trying to do. We don't know what you're really wanting to accomplish. I suspect you need one of these three: 1. A more recent Postfix 2. A different MTA altogether 3. A more reasonable goal -- Offlist mail to this address is discarded unless "/dev/rob0" or "not-spam" is in Subject: header