Topmail Server Settings

Incoming Settings IMAP

Server hostname: imap.topmail.com
Port number: 993
SSL: Enabled
 

Outgoing (SMTP) Settings (same for both POP & IMAP)

Server hostname: smtp.topmail.com
Port: 25
TLS: Enabled

Some ISPs block port 25. If you're having trouble sending email then try port 587 instead. You can also try port 465. These are standard alternatives in case port 25 is blocked by your Internet Service Provider

Incoming Settings POP

Server hostname: pop.topmail.com
Port number: 995
SSL: Enabled