Sean Reifschneider: > I'm reporting this primarily because the other searching I've done has > turned up this same error message, but with nothing that clearly points out > what the root of the issue really is. I'm hoping someone can shed some > light on it. > > We've been having little if any luck tracking down an issue where for a > small sub-set of users their messages are causing the following to be > logged: > > can't read SMFIC_HEADER reply packet header: Success > > The closest I've found in searching is this message: > > http://readlist.com/lists/postfix.org/postfix-users/13/67034.html
What about the remedies suggested in the Postfix MILTER_README? If the Postfix milter_protocol setting specifies a too high version, the libmilter library simply hangs up without logging a warning, and you see a Postfix warning message like one of the following: warning: milter inet:host:port: can't read packet header: Unknown error : 0 warning: milter inet:host:port: can't read packet header: Success warning: milter inet:host:port: can't read SMFIC_DATA reply packet header: No such file or directory That's Sendmail libmilter hanging up. Wietse