IMAP - can't setup emails through outlook, horde is fine


Apr 24, 2014
cPanel Access Level
Root Administrator
Hi There,

I'm on a fresh install of WHM and can't receive or send emails with imap accounts on Outlook:

Log onto incoming mail server (IMAP): The connection to the server failed.

Send test e-mail message: Your outgoing (SMTP) e-mail server has reported an internal error. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).
- log files show nothing unusual (maillog,exim_*,messages)
- horde/webmail is fine, receiving emails
- 143/25 ports are open
- No problem testing the connection on shell

Any ideas?

Many thanks