connection to storage server failed

[floriano]

Hello,

I have installed in my server RoundCube with ZPanelcp

I get error when I want to sign

here is logs/errors:

[02-Oct-2014 11:51:28 +0200]: IMAP Error: Login failed for admin@mysite.com from 77.230..... AUTHENTICATE PLAIN: * BYE Internal error occurred. Refer to server log for more information. in /etc/zpanel/panel/etc/apps/webmail/program/lib/Roundcube/rcube_imap.php on line 184 (POST /etc/apps/webmail/?_task=login&_action=login)

Thanks for any help,
Floriano

[JohnDoh]

The message from your IMAP server says it had an internal error and that you should check its log file to see what went wrong. This error is not coming from Roundcube.

[floriano]

Thank you,

where I find check log file

B.R.
Floriano

[Aas]

where I find check log file

It depends on your distro and used MDA.
Might be /var/log/maillog