hi,

i use 0.7.0 with mysql backend, on debian squeeze 64.
the server was up since months, without problems.
this morning something went wrong, nobody could send or receive mails.
i found this in the mail.log:

postfix/smtpd[7074]: warning: connect to 127.0.0.1:7777: Connection refused

after restarting the server everything was ok.

i read in the forums that this was because iredapd was not running.
it's really interesting what happened that stopped iredapd, i did not do any system updates or anything in the last months.

later today i noticed that roundcube stops working randomly, it prints an error message about database error, a few seconds later everything is ok again.
this happened a few times this afternoon.

please help me to find what causes these problems.

thanks
adam

edit:
i found lines like these in the log:
Sep  2 16:12:08 mail roundcube: MDB2 Error: unknown error (-1): _doConnect: [Error message: Too many connections]#012[Native code: 1040]#012[Native message: Too many connections]
Sep  2 16:12:08 mail roundcube: DB Error: _doConnect: [Error message: Too many connections]#012[Native code: 1040]#012[Native message: Too many connections]#012 ** mysqli(mysqli)://roundcube:xxx@localhost/roundcubemail in /usr/share/apache2/roundcubemail-0.5.1/program/include/rcube_mdb2.php on line 101 (GET /?_task=mail)