Impossible connection through IMAP

[guillaumedc]

Hi,

I'm using docker-mailserver 13.2.0, and as of today, I can no more connect to my server using IMAP.

SMTP seams to work just fine since mails are delivered to the mailbox on server, but I got an error when I try to use an Android client or a webmail.

Can't connect to host "ssl://imap.domain.tld:993"

Port 993 is bound to host, and firewall seams to accept connexions.

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0      0 0.0.0.0:143             0.0.0.0:*               LISTEN     
tcp        0      0 0.0.0.0:4190            0.0.0.0:*               LISTEN     
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN     
tcp        0      0 0.0.0.0:993             0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.54:53           0.0.0.0:*               LISTEN     
tcp        0      0 0.0.0.0:587             0.0.0.0:*               LISTEN     
tcp6       0      0 :::143                  :::*                    LISTEN     
tcp6       0      0 :::4190                 :::*                    LISTEN     
tcp6       0      0 :::25                   :::*                    LISTEN     
tcp6       0      0 :::22                   :::*                    LISTEN     
tcp6       0      0 :::993                  :::*                    LISTEN     
tcp6       0      0 :::587                  :::*                    LISTEN  

Chain DOCKER (2 references)
target     prot opt source               destination         
ACCEPT     tcp  --  0.0.0.0/0            172.18.0.2           tcp dpt:4190
ACCEPT     tcp  --  0.0.0.0/0            172.18.0.2           tcp dpt:993
ACCEPT     tcp  --  0.0.0.0/0            172.18.0.2           tcp dpt:587
ACCEPT     tcp  --  0.0.0.0/0            172.18.0.2           tcp dpt:143
ACCEPT     tcp  --  0.0.0.0/0            172.18.0.2           tcp dpt:25

Does someone have an idea?
Thanks

[casperklein]

Do you have fail2ban active? Check if you are banned.

[guillaumedc]

Thank you very much, I was actually banned!