dovecot - Jun 2007 - connection dropped by imap

hello,

when i create imap account in mail client (ex: outlook, thunderbird) it's
allright. but if i want login with this account to webmail (i have 2
webmail: squirrelmail and roundcube) commonly i get error. squirrelmail
say: Connection droped by imap. roundcube say nothing(white screen). But
sometimes i can login. 
and i see one thing...
when i restart apache, i can login above 1-2 hours, but later i can't
login.
i restart apache again and again i can login 1-2 hours.

please help

dovecot 1.0.1
freebsd 5.3
apache 1.3.34
php 4.4.5


On Sat, 30 Jun 2007 00:18:38 +0300, Mantas <mnt at mnt.lt>
wrote:
> hello,
> 
> when i create imap account in mail client (ex: outlook, thunderbird)
it's
> allright. but if i want login with this account to webmail (i have 2
> webmail: squirrelmail and roundcube) commonly i get error. squirrelmail
> say: Connection droped by imap. roundcube say nothing(white screen). But
> sometimes i can login.
> and i see one thing...
> when i restart apache, i can login above 1-2 hours, but later i can't
> login.
> i restart apache again and again i can login 1-2 hours.
> 
> please help

apache log say nothing.
dovecot log :
dovecot: Jun 30 10:56:06 Info: auth(default):
passwd(diana at aaaaa.lt,127.0.0.1): unknown user
dovecot: Jun 30 10:56:06 Info: auth(default):
passwd(diana at aaaaa.lt,127.0.0.1): unknown user
dovecot: Jun 30 10:56:06 Info: imap-login: Login: user=<diana at
aaaaa.lt>,
method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured
dovecot: Jun 30 10:56:06 Info: IMAP(diana at aaaaa.lt): Disconnected: Logged
out
dovecot: Jun 30 10:56:07 Info: auth(default):
passwd(diana at aaaaa.lt,127.0.0.1): unknown user
dovecot: Jun 30 10:56:07 Info: auth(default):
passwd(diana at aaaaa.lt,127.0.0.1): unknown user
dovecot: Jun 30 10:56:07 Info: imap-login: Login: user=<diana at
aaaaa.lt>,
method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured
dovecot: Jun 30 10:56:07 Info: IMAP(diana at aaaaa.lt): Disconnected: Logged
out
dovecot: Jun 30 10:57:07 Info: auth(default):
passwd(diana at aaaaa.lt,127.0.0.1): unknown user
dovecot: Jun 30 10:57:07 Info: auth(default):
passwd(diana at aaaaa.lt,127.0.0.1): unknown user
dovecot: Jun 30 10:57:07 Info: imap-login: Login: user=<diana at
aaaaa.lt>,
method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured

when error "connection dropped by imap" appear, allways login
procedure
repeated 3 times (in log file).



On Fri, 29 Jun 2007 23:24:12 +0200, Philipp Wollermann <philipp at
igowo.de>
wrote:
> Mantas wrote:
>>> when i create imap account in mail client (ex: outlook,
thunderbird)
> it's
>>> allright. but if i want login with this account to webmail (i have
2
>>> webmail: squirrelmail and roundcube) commonly i get error.
squirrelmail
>>> say: Connection droped by imap. roundcube say nothing(white
screen).
> But
>>> sometimes i can login.
>>>
> So.. what exactly appears in your system logfiles in /var/log when you
> try to login and it does not work? Shouldn't that be the first thing to
> look for? :)
> 
> Regards,
> Philipp