On 19. Aug 2011, at 15:50 Uhr, Christian Roessner wrote: > Am 19.08.2011 14:56, schrieb Ray Davis: >> What would cause valid email addresses to be unknown periodically? They are >> valid before and after the following log entries and nothing on the server >> was changed. >> >> This happens to something like 1-4 emails per day (sometimes 0). When it >> happens, all the recipient addresses in the mail are rejected. >> >> Aug 16 09:44:29 mxs01 postfix/smtpd[15032]: NOQUEUE: reject: RCPT from >> mf0.ffm0.de.carpe.net[212.96.133.20]: 550 5.1.1 <john....@foo.com>: >> Recipient address rejected: User unknown in virtual alias table; >> from=<op...@xyz.de> to=<john....@foo.com> proto=ESMTP >> helo=<mf0.ffm0.de.carpe.net> >> Aug 16 09:44:29 mxs01 postfix/smtpd[15029]: NOQUEUE: reject: RCPT from >> mf0.ffm0.de.carpe.net[212.96.133.20]: 550 5.1.1 <jane....@foo.com>: >> Recipient address rejected: User unknown in virtual alias table; >> from=<nop...@xyz.de> to=<jane....@foo.com> proto=ESMTP >> helo=<mf0.ffm0.de.carpe.net> >> >> This is a Mac OS X Snow Leopard Server with no postfix config modifications. > > So you are using OpenDirectory for your user accounts? Maybe this > service does have some problems?
Yes, OpenDirectory. I don't know if it has any problems - was hoping someone here would know. But it's a hint to search in that direction. -R
