==== Required information ====
- iRedMail version (0.9.8 MARIADB edition):
- Linux Ubuntu 16:
- Store mail accounts in which backend (mariadb mysql):
- Web server (Nginx):
- Manage mail accounts with iRedAdmin-community?
====

I just installed the fresh Iredmail on server , I'm having strange issue. I can not logged into mail box using roundcube webmail keep getting message connect to storage server failed

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Jun  1 17:38:49 mail roundcube: <tmaqmkpa> IMAP Error: Login failed for support@mydomain.com from 103.7.60.186. LOGIN: Internal error occurred. Refer to server log for more information. in /opt/www/roundcubemail-1.3.6/program/lib/Roundcube/rcube_imap.php on line 196 (POST /mail/?_task=login&_action=login)
Jun  1 17:39:15 mail roundcube: <tmaqmkpa> IMAP Error: Login failed for support@mydomain.com from 103.7.60.186. LOGIN: Internal error occurred. Refer to server log for more information. in /opt/www/roundcubemail-1.3.6/program/lib/Roundcube/rcube_imap.php on line 196 (POST /mail/?_task=login&_action=login)
Jun  1 17:40:11 mail roundcube: <tmaqmkpa> IMAP Error: Login failed for support@mydomain.com from 103.7.60.186. LOGIN: Internal error occurred. Refer to server log for more information. in /opt/www/roundcubemail-1.3.6/program/lib/Roundcube/rcube_imap.php on line 196 (POST /mail/?_task=login&_action=login)
Jun  1 17:40:13 mail postfix/pipe[5322]: 52780103EE2: to=<postmaster@mydomain.com>, relay=dovecot, delay=5813, delays=5813/0.04/0/0.11, dsn=4.3.0, status=deferred (temporary failure)
Jun  1 17:40:13 mail postfix/pipe[5321]: 56CD3103BEF: to=<postmaster@mydomain.com>, relay=dovecot, delay=1098, delays=1098/0.07/0/0.21, dsn=4.3.0, status=deferred (temporary failure)
Jun  1 17:40:31 mail roundcube: <tmaqmkpa> IMAP Error: Login failed for support@mydomain.com from 103.7.60.186. LOGIN: Authentication failed. in /opt/www/roundcubemail-1.3.6/program/lib/Roundcube/rcube_imap.php on line 196 (POST /mail/?_task=login&_action=login)
Jun  1 17:40:46 mail roundcube: <tmaqmkpa> IMAP Error: Login failed for support@mydomain.com from 103.7.60.186. LOGIN: Internal error occurred. Refer to server log for more information. in /opt/www/roundcubemail-1.3.6/program/lib/Roundcube/rcube_imap.php on line 196 (POST /mail/?_task=login&_action=login)
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root@mail:~# ls /opt/www/ -al
total 16
drwxr-xr-x  4 root      root      4096 Jun  1 00:02 .
drwxr-xr-x  9 root      root      4096 Jun  1 00:02 ..
lrwxrwxrwx  1 root      root        24 Jun  1 00:02 iredadmin -> /opt/www/iRedAdmin-0.9.1
dr-xr-xr-x 10 iredadmin iredadmin 4096 Jun  1 01:01 iRedAdmin-0.9.1
lrwxrwxrwx  1 root      root        28 Jun  1 00:02 roundcubemail -> /opt/www/roundcubemail-1.3.6
drwxr-xr-x 13 root      root      4096 Jun  1 00:02 roundcubemail-1.3.6

Even password is correct .

Regards
Tehseen