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Obsolete Releases => SME Server 8.x => Topic started by: fpausp on May 02, 2013, 06:22:02 PM

Title: Thunderbird does not save sent messages ?
Post by: fpausp on May 02, 2013, 06:22:02 PM

We use Thunderbird (always latest version) on Windows as mailclient connected (via imap) to a sme8 with a few contribs (fetchmail ...).

Sometimes it is not possible to save a sent message, thunderbird comes up with an error message "not possible to save email under ..."

Title: Re: Thunderbird does not save sent messages ?
Post by: larieu on May 02, 2013, 07:47:07 PM

I have found this error in the following situations

1. The client computer (where Thunderbird is installed) is extremely busy - I had experienced computers with 2G RAM and page file >3G

2. The sync between IMAP server = SME and thunderbird client is slow
(could happen if the IMAP is quite big or has lots of folders - one of my users managed to have folders for 3 years / 12 month per year / 25 folders per month / 50 folders per previous folders - in each with 2~5 emails per folder - the full sync was over 1 hour; another user managed to have >3G in Sent  ) 

3. the client computer has to many accounts (by default each account in Thunderbird use 5 simultaneous connections per account) and you'll reach maximum connections per IP

4. server is busy or reached the maximum connections per imap/imaps

look at top command and also in log files on the server


in console

tail -f /var/log/imaps/current
or if you use plain IMAP (not port 993)
tail -f /var/log/imap/current

Title: Re: Thunderbird does not save sent messages ?
Post by: mmccarn on May 03, 2013, 03:15:33 PM

You may be running into a 'concurrency' issue:
http://wiki.contribs.org/Email#.22concurrency_limit_reached.22_when_using_IMAP

Title: Re: Thunderbird does not save sent messages ?
Post by: fpausp on May 05, 2013, 04:38:01 PM

I tried some changes -

Code: [Select]

ConcurrencyLimitPerIP 20

 and

Code: [Select]

MaxMessageSize 30000000


Code: [Select]

ps aux | grep concurrency

root      2342  0.0  0.0    144    60 ?        S    09:02   0:00 /usr/bin/tcpsvd -v -i ./peers -c 400 -C 20:421 per host concurrency limit reached\r\n -l 0 0 imap makesock stunnel-tls -/ ssl -s 451 -g 451 -N imap -i -p imapd.pem -n imap- -f -F 3 -makesock_connect_to /usr/bin/imapfront-auth /service/imap/imapd
root      2405  0.0  0.0    140    52 ?        S    09:02   0:00 tcpsvd -v -i ./peers -c 40 -C 4:421 per host concurrency limit reached\r\n -l 0 0 pop3 /var/qmail/bin/qmail-popup serverpdc.server.at checkpassword-pam -s pop3 /var/qmail/bin/qmail-pop3d Maildir
root      3440  0.0  0.0    144    60 ?        S    09:03   0:00 /usr/bin/tcpsvd -v -i ./peers -c 400 -C 20:421 per host concurrency limit reached\r\n -l 0 0 imaps sslio -vv -/ ../imap/ssl -C imapd.pem -u stunnel /usr/bin/imapfront-auth /usr/libexec/dovecot/imap
root      3441  0.0  0.0    140    60 ?        S    09:03   0:00 tcpsvd -v -i ./peers -c 40 -C 4:421 per host concurrency limit reached\r\n -l 0 0 pop3s sslio -vv -/ /service/imap/ssl -u stunnel -C imapd.pem /var/qmail/bin/qmail-popup serverpdc.server.at checkpassword-pam -s pop3 /var/qmail/bin/qmail-pop3d Maildir
root     12809  0.0  0.0   4280   660 pts/1    R+   16:29   0:00 grep concurrency


any additional suggestions ?