Timo, I started dovecot on both servers in debug mode. I'm attaching the output.
The mail unfortunately is still stuck, sigh! Regards, CINZIA INNOCENZI Technical Consulting HP Enterprise Services Telephone +39 06.6542.5758 Email cinzia.innoce...@hp.com Via Achille Campanile, 85 / Rome, Italy 00143 -----Original Message----- From: Innocenzi, Cinzia Sent: lunedì 4 luglio 2011 20.58 To: 'Timo Sirainen' Cc: Del Coiro, Maria Giacinta; dovecot@dovecot.org Subject: RE: [Dovecot] Dovecot 2.0.13 problem with LMTP Hello Timo, I'm sorry I haven't replied before, but I've been investigating as much as possible on this problem, and, for a moment, I thought I came up with something... Thanks to Simone Caruso's hint, I've been doing some checks on LMTP-LDAP connections, since I would always get an LDAP error in the dovecot proxy's logfile. Furthermore, I found out that the back end nodes didn't have resolv.conf aligned properly. So I blamed the errors to this misconfiguration, especially because as soon as I aligned resolv.conf, the three stuck mails I had in the queue this morning got delivered immediately! Unfortunately, this is not the case. I applied the three patches you provided to front end proxies and back end nodes. I have a stuck mail that will not get delivered! I'm attaching the logs. Thanks again for your help. Regards, CINZIA INNOCENZI Technical Consulting HP Enterprise Services Telephone +39 06.6542.5758 Email cinzia.innoce...@hp.com Via Achille Campanile, 85 / Rome, Italy 00143 -----Original Message----- From: Timo Sirainen [mailto:t...@iki.fi] Sent: giovedì 30 giugno 2011 7.36 To: Innocenzi, Cinzia Cc: Del Coiro, Maria Giacinta; dovecot@dovecot.org Subject: Re: [Dovecot] Dovecot 2.0.13 problem with LMTP Try to apply these patches to both proxy and backend and see what it logs then? http://hg.dovecot.org/dovecot-2.0/raw-rev/1b1fc681a277 http://hg.dovecot.org/dovecot-2.0/raw-rev/36e7ded2ef0b http://hg.dovecot.org/dovecot-2.0/raw-rev/537d4b6d9a7a On Tue, 2011-06-28 at 08:38 +0000, Innocenzi, Cinzia wrote: > Hello Timo, > > so far I've seen this happening when proxying a mail for one recipient; I've > never seen this happening for multiple recipients. > > The other thing I've noticed is that if I reload dovecot, the mail usually > gets delivered. Once, it remained stuck in the queue, but after a few hours, > when I checked postfix's queue again, it got delivered. > > Let me know if you need further information. > > Regards, > > CINZIA INNOCENZI > Technical Consulting > HP Enterprise Services > Telephone +39 06.6542.5758 > Email cinzia.innoce...@hp.com > Via Achille Campanile, 85 / Rome, Italy 00143 > > > > -----Original Message----- > From: Timo Sirainen [mailto:t...@iki.fi] > Sent: martedì 28 giugno 2011 2.04 > To: Innocenzi, Cinzia > Cc: dovecot@dovecot.org; Del Coiro, Maria Giacinta > Subject: Re: [Dovecot] Dovecot 2.0.13 problem with LMTP > > On Wed, 2011-06-22 at 10:31 +0000, Innocenzi, Cinzia wrote: > > Hello, > > > > we have dovecot 2.0.13 installed in our RHEL5 servers. We use > > dovecot as a lmtp proxy on the front end mail relays and dovecot for > > back end lmtp/pop/imap. All our servers have RHEL5.6 64-bit and > > dovecot 2.0.13 installed, and the back end has also an ext3 mbox > > file-system mounted. > > > > Sometimes we have mails that get stuck on our postfix queue with the > > following error: Remote server not answering (timeout in DATA input) > > (in reply to end of DATA command) > .. > > It doesn't happen for every single mail, it's random. > > My guess is there's a bug somewhere in the LMTP proxy code. It's a bit > annoyingly complex code.. Do you see this happening when proxying only > a single mail (one RCPT TO per DATA, not multiple)? > > And I would guess that when attempting to deliver the same mail again > it works fine (at least in a few tries)? > >
dovecot.debug.log
Description: dovecot.debug.log
