Re: Weird problems with pop3d
Alexandre BOULANGER wrote: Hi all, I'm using since 2 years a few Debian mail servers, now running Cyrus 2.1.18, both with imapd and pop3d activated. I have perdition as proxy for mapping [EMAIL PROTECTED] logins to the format they're stocked into Cyrus, nothing more. I've got a major problem since 1 month now; sometimes POP3 users cannot retrieve their mail, but they could see it in our Webmail or with IMAP. This happens very randomly at some users. Looking deeper at it, it seems that the content of some messages make the pop3d process to hang, and keep the mailbox locked; to unlock it I have to kill the POP3 process, delete the mail with IMAP and expunge the mailbox. If you have a sample message which causes the problem, I will look into it. -- Kenneth Murchison Systems Programmer Carnegie Mellon University Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Re: Weird problems with pop3d
In fact, no, popminpoll is already set to 0. I've tried to set it to 1, for a while, in order to restrict the number of pop3 sessions, but I still had "message-blocking-mailbox" problem Le mercredi 07 décembre 2005 à 09:47 -0800, Andrew Morgan a écrit : > > Could it be the popminpoll setting in imapd.conf? That's the only other > idea that comes to mind. > > Andy > -- Alexandre BOULANGER <[EMAIL PROTECTED]> Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Re: Weird problems with pop3d
On Wed, 7 Dec 2005, Alexandre BOULANGER wrote: Hi all, I'm using since 2 years a few Debian mail servers, now running Cyrus 2.1.18, both with imapd and pop3d activated. I have perdition as proxy for mapping [EMAIL PROTECTED] logins to the format they're stocked into Cyrus, nothing more. I've got a major problem since 1 month now; sometimes POP3 users cannot retrieve their mail, but they could see it in our Webmail or with IMAP. This happens very randomly at some users. Looking deeper at it, it seems that the content of some messages make the pop3d process to hang, and keep the mailbox locked; to unlock it I have to kill the POP3 process, delete the mail with IMAP and expunge the mailbox. I've fsck'ed the whole server and found nothing; my max list of open files isn't reached, moreover I've recompiled a kernel with an increased value, disabled APOP and TLS stuff, searched the Cyrus archives for similar matters but found nothing. Of course I have no problem with IMAP, but I will still have users using POP and complaining about mailboxes being blocked, without knowing exactly why. Does someone have an idea? or debug methods I can use (except checking logs in $cyrushome/log/$myuser) Could it be the popminpoll setting in imapd.conf? That's the only other idea that comes to mind. Andy Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Weird problems with pop3d
Hi all, I'm using since 2 years a few Debian mail servers, now running Cyrus 2.1.18, both with imapd and pop3d activated. I have perdition as proxy for mapping [EMAIL PROTECTED] logins to the format they're stocked into Cyrus, nothing more. I've got a major problem since 1 month now; sometimes POP3 users cannot retrieve their mail, but they could see it in our Webmail or with IMAP. This happens very randomly at some users. Looking deeper at it, it seems that the content of some messages make the pop3d process to hang, and keep the mailbox locked; to unlock it I have to kill the POP3 process, delete the mail with IMAP and expunge the mailbox. I've fsck'ed the whole server and found nothing; my max list of open files isn't reached, moreover I've recompiled a kernel with an increased value, disabled APOP and TLS stuff, searched the Cyrus archives for similar matters but found nothing. Of course I have no problem with IMAP, but I will still have users using POP and complaining about mailboxes being blocked, without knowing exactly why. Does someone have an idea? or debug methods I can use (except checking logs in $cyrushome/log/$myuser) TIA -- Alexandre BOULANGER <[EMAIL PROTECTED]> Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Re: Problems with pop3d
Hey, das ist ja sogar mehr Info als ich haben wollte ;-) Aber jetzt hab ichs verstanden, Dankeschön! Hallo Fabian Die Uebersetzung lautet "Entropie". Hier Infos zu deinem Problem: http://acs-wiki.andrew.cmu.edu/twiki/bin/view/Cyrus/POP3DevRandomIssue Hier Infos zur Entropie: http://de.wikipedia.org/wiki/Entropie_%28Informationstheorie%29 Solltest du danach noch Fragen haben, wende dich an einen naturwissenschaftlichen Lehrer deines Vertrauens [Chemie|Physik| Mathematik] der sollte das Konzept der Entropie kennen und es dir erklaeren koennen. Er wird dann wohl ehere vom 2. Hauptsatz der Thermodynamik her argumentieren. Aber so ein bisschen Interdiszplinaritaet schadet sicher nicht ;-) cu romeo On Mon, 2005-10-24 at 17:04 +0200, Fabian Hellmundt wrote: >> Hello everyone, >> we're setting up a new mailserver for our local school and had chosen >> cyrus for imap/pop3. The point is that everything works fine (the >> whole >> authentication thing with sasl etc...) except the pop3d: At first >> pop3d >> works, connecting to port 110 it shows the banner and your're able to >> authenticate. But after authenticating and quitting and trying a >> secound >> time, the connection can be established indeed, but you don't get the >> greeting banner of the pop3d. It seems to be a dead connection. >> Moreover >> you get a zombie-pop3d-process every time you try to connect. And if >> you >> wait a random time, cyrus seems to "heal" itself and everything works >> fine again. > > Your server is most likely running out of entropy for OpenSSL to > produce > an APOP challenge, which appears in the banner. You'll have to find a > way > to provide OpenSSL with suitable entropy, or disable APOP by setting > allowapop:off in imapd.conf. > > > -- > Kenneth Murchison > Systems Programmer > Carnegie Mellon University > I have just disabled apop and everything works fine.. Thank you! But honestly I don't really understand why it works now. What is meant by an entropy? I didn't find a suitable translation in my dictionaries :-) Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Re: Problems with pop3d
Hello everyone, we're setting up a new mailserver for our local school and had chosen cyrus for imap/pop3. The point is that everything works fine (the whole authentication thing with sasl etc...) except the pop3d: At first pop3d works, connecting to port 110 it shows the banner and your're able to authenticate. But after authenticating and quitting and trying a secound time, the connection can be established indeed, but you don't get the greeting banner of the pop3d. It seems to be a dead connection. Moreover you get a zombie-pop3d-process every time you try to connect. And if you wait a random time, cyrus seems to "heal" itself and everything works fine again. Your server is most likely running out of entropy for OpenSSL to produce an APOP challenge, which appears in the banner. You'll have to find a way to provide OpenSSL with suitable entropy, or disable APOP by setting allowapop:off in imapd.conf. -- Kenneth Murchison Systems Programmer Carnegie Mellon University I have just disabled apop and everything works fine.. Thank you! But honestly I don't really understand why it works now. What is meant by an entropy? I didn't find a suitable translation in my dictionaries :-) Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Re: Problems with pop3d
Fabian Hellmundt wrote: Hello everyone, we're setting up a new mailserver for our local school and had chosen cyrus for imap/pop3. The point is that everything works fine (the whole authentication thing with sasl etc...) except the pop3d: At first pop3d works, connecting to port 110 it shows the banner and your're able to authenticate. But after authenticating and quitting and trying a secound time, the connection can be established indeed, but you don't get the greeting banner of the pop3d. It seems to be a dead connection. Moreover you get a zombie-pop3d-process every time you try to connect. And if you wait a random time, cyrus seems to "heal" itself and everything works fine again. Your server is most likely running out of entropy for OpenSSL to produce an APOP challenge, which appears in the banner. You'll have to find a way to provide OpenSSL with suitable entropy, or disable APOP by setting allowapop:off in imapd.conf. -- Kenneth Murchison Systems Programmer Carnegie Mellon University Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Problems with pop3d
Hello everyone, we're setting up a new mailserver for our local school and had chosen cyrus for imap/pop3. The point is that everything works fine (the whole authentication thing with sasl etc...) except the pop3d: At first pop3d works, connecting to port 110 it shows the banner and your're able to authenticate. But after authenticating and quitting and trying a secound time, the connection can be established indeed, but you don't get the greeting banner of the pop3d. It seems to be a dead connection. Moreover you get a zombie-pop3d-process every time you try to connect. And if you wait a random time, cyrus seems to "heal" itself and everything works fine again. We would be very happy if you help us because we want to start the new system the day after tomorrow ;-) Thanks in advance! Fabian Hellmundt, Administrator of the Michaeli-Gymnasium in Munich Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
