Thursday, July 24, 2014, 6:57:21 PM, Eric wrote: > On 07/24/2014 06:39 AM, Diana Calder wrote: >> Hello Angus, >> >> Wednesday, July 23, 2014, 2:20:45 PM, you wrote: >> >> >>> Diana Calder wrote: >>>> I have an odd problem with one user account. When trying to login to >>>> Squirrelmail, the login will hang for several seconds then result in: >>>> >>>> ERROR: Connection dropped by IMAP server. >>>> Query: LOGOUT
This is now happening with more than one user account. The problem has returned on the one that I *thought* I had fixed plus it's showing up on multiple other accounts. Yet some still work. Here's what the Dovecot log shows: Jul 25 13:30:08 imap-login: Info: Aborted login (auth failed, 1 attempts in 2 secs): user=<[email protected]>, method=CRAM-MD5, rip=::1, lip=::1, secured, session=<2x6i7Af/NwAAAAAAAAAAAAAAAAAAAAAB> All accounts still work with either POP3 or IMAP from a client (The Bat!), they only have issues in Squirrelmail. Having said, that, I will occasionally see an IMAP account "hang" in The Bat! - it will hang up on accessing the account for hours until the user manually tells The Bat! to abort the connection. It logs in okay: 25/07/2014, 13:21:02: IMAP - Connecting to IMAP server in.essexcountylibrary.ca on port 143 25/07/2014, 13:21:02: IMAP - Connected to IMAP server (in.essexcountylibrary.ca) >25/07/2014, 13:21:02: IMAP - Dovecot toaster ready. 25/07/2014, 13:21:02: IMAP - Authenticating (user: "[email protected]", method: "LOGIN")... 25/07/2014, 13:21:02: IMAP - IMAP server authentication OK, server says "Logged in" But that's where it hangs - it simply stays connected to the server forever without ever updating the mailboxes OR erroring out. Here's what Dovecot shows in this case: Jul 25 13:32:23 imap-login: Info: Login: user=<[email protected]>, method=PLAIN, rip=205.207.189.15, lip=205.207.189.144, mpid=3558, session=<b9TM9Af/gQDNz70P> This looks exactly like the first log entry for a fully successful connection via The Bat!: Jul 25 13:34:36 imap-login: Info: Login: user=<[email protected]>, method=PLAIN, rip=205.207.189.15, lip=205.207.189.144, mpid=3707, session=<ccS3/Af/mwDNz70P> Jul 25 13:34:41 imap([email protected]): Info: Disconnected: Disconnected in IDLE in=4199 out=76924 > I haven't observed any SM specific problems with large mailboxes. There > were problems with Courier IMAP and large mailboxes, but Dovecot should > have no problems with them. This is one of the reasons we're using > dovecot instead of courier now. > I wouldn't hesitate to let users have 1G mailboxes, so long as you have > the disk space. Yes, we have the disk space. I already had the headache of having to increase the partition size once, so I made sure to make it ridiculously huge when I did that. > Also, be sure to use the dirindex option if you use the ext3/4 > filesystem. Not having that turned on can cause performance problems > with folders which have a large number of messages. Yep, that was already on. I also went in and enabled noatime but, considering that it didn't help with the problem, I'm debating turning that back off. Anybody have any suggestions? I'm just about ready to give in and do a fresh install of CentOS and Qmail, then import all of my old messages. Except that I'm not entirely certain that the problem won't follow the old messages to a new box. -- Best regards, Diana Calder mailto:[email protected] Automation Technician (519) 776-5241 x.131 Essex County Library Essex, ON --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
