On Tue, Jan 04, 2011 at 09:47:10AM -0500, Phil Howard wrote: > > Unlike some software, Postfix behaves as documented, so you can > > easily establish from the manpage how the prepend action works. > > So basically, the answer is "no". > > Behaving as documented is good. But is it the case that every feature > is documented and none are left out?
Postfix features are developed after or concurrently with the reference documentation. There are no hidden features. Undocumented features are never adopted into Postfix. If it is not documented, it is not a feature. This *should* not be surprising. Not all the internal architectural details are documented, these are not features. Rather, an expert administrator could use a deep understanding of the internal architecture to more easily tune and troubleshoot a Postfix system. The internal architecture is subject to change, and users must not depend on it not changing. Some of the internals are described in the OVERVIEW, QSHAPE_README and SCHEDULER_README documents. -- Viktor.