Some options for more troubleshooting: Activate, and look at Thunderbird IMAP logs to see if you can determine the problem. http://email.about.com/od/mozillathunderbirdtips/qt/et_mail_log.htm
If that doesn't shed any light: From another machine, use openssl s_client to connect to the imaps port, and attempt to login manually over IMAP. (openssl can also do STARTTLS with -starttls imap) Typically I will log in with: * OK [CAPABILITY IMAP4rev1 blah blah blah ...] a LOGIN username1 password1 a OK [CABAPILITY IMAP4rev1 blah blah blah ...] User username1 logged in. b SELECT INBOX * FLAGS (\Answered \Flagged \Deleted \Seen) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen] Flags permitted. * 9111 EXISTS * 0 RECENT * OK [UNSEEN 1348] First unseen. b OK [READ-WRITE] Select completed. Hopefully one of these will give you some ideas as to what is wrong... Jim On 10/03/2012 10:53 AM, Kevin Carpenter wrote: > OK - after a few hours sleep... I'm wondering if its uw-imap at all, > although I'm clueless what else it could be. > > As I mentioned earlier, squirrelmail is working fine. It is using a > ssl/tls connection, which shows as an imaps connection spawned by > xinetd. That connection, however, is from 127.0.0.1. Thunderbird is > connection from 10.184.155.0/24 (depending on which family members > machine is trying). We also see imaps being started via xinetd for > those connection, but they timeout after 30 seconds. > > This was occurring before I enabled any firewalling and yes, xinetd is > enabled for my 10. subnet (clearing, since imaps is spawning). > > So... when I login from squirrelmail I see in /var/log/mail.log: > > imapd[2911]: Login user=kevinc host=localhost.localdomain [127.0.0.1] > imapd[2911]: Logout user=kevinc host=localhost.localdomain [127.0.0.1] > > and in /var/log/messages: > > xinetd[2739]: START: imaps pid=2911 from=127.0.0.1 > xinetd[2739]: EXIT: imaps status=0 pid=2911 duration=13(sec) > > When I try, and fail, from Thunderbird I see in /var/log/mail.log: > > imapd[2919]: Unexpected client disconnect, while reading line > user=??? host=UNKNOWN > > and in /var/log/messages: > > xinetd[2739]: START: imaps pid=2919 from=10.184.155.208 > xinetd[2739]: EXIT: imaps status=1 pid=2919 duration=30(sec) > > Please share your thoughts... I'm at my wits end. > > For instance: is there anyway to increase the logging level within > uw-imap to help determine whats going on? > > Thanks in advance, > > Kevin > > On 10/3/2012 3:59 AM, Yiorgos Adamopoulos wrote: >> On Wed, Oct 3, 2012 at 11:50 AM, Kevin Carpenter >> <kevin.n.carpen...@me.com> wrote: >>> Basically, its looking like its connecting but not hand shaking right. >> If you tcpdump and it only does the three way hand shake and then it >> waits "forever" (until timeout) then it is most likely a TCP window >> scaling issue. Check your MTUs also and set it to 500 just in case. >> The weirdest of this behavir has happened to me among two servers on >> the same switch where everything was working except sqlplus between >> them. >> > > _______________________________________________ > Imap-uw mailing list > Imap-uw@u.washington.edu > http://mailman2.u.washington.edu/mailman/listinfo/imap-uw _______________________________________________ Imap-uw mailing list Imap-uw@u.washington.edu http://mailman2.u.washington.edu/mailman/listinfo/imap-uw
