======== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.2
- Linux/BSD distribution name and version: Ubuntu 15.10
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? Free
- Related log if you're reporting an issue:
====
I am using iRedMail (Dovecot/Postfix) as mail server. I have the roundcube as my main webmail and rainloop as my second webmail. I am doing fine with the iRedmail main roundcube sending and receiving emails from webmail but I still have this error in Mail Server Settings (SMTP) when I am using RainLoop (attached in pic):
stream_socket_client(): unable to connect to tcp://domain.com:587 (Connection refused)
Port 25 & 587 are both open anyway
Where do I have to fix this?
Thanks in advance