Wietse Venema: > Sean Reifschneider: > > On 03/18/2010 05:57 AM, Wietse Venema wrote: > > > If the Postfix milter_protocol setting specifies a too high > > > version, the libmilter library simply hangs up without logging > > > > We've tried protocol versions 2, 4, and 6 with the same error. We've also > > tried two different versions of the libmilter: 8.13 and 8.14. We're trying > > version 3 of the protocol right now, but it will take a while to know for > > sure what the result of that is. It only happens for a few specific users > > who only send mail a few times a day. > > > > My experience in the past has been that having the wrong protocol version > > causes problems on all the milter interactions. In this case the milter is > > working fine for almost all the requests, except for a couple of users (out > > of thousands). > > Unfortunately, it seems that my crystal ball isn't working today.
FYI, The crystal ball is still blank. In the mean time, it would help if you could provide verbose (smtpd AND cleanup) logging for a failed session. Please include information about Postfix version and configuration, as well as python filter version and configuration, and libmilter version information. Then, I'll see if the problem can be reproduced. Wietse