Ports mail server

Default Ports:

Server: Authentication: Port:
SMTP Server (Outgoing Messages) Non-Encrypted AUTH 25 (or 587)
Secure (TLS) StartTLS 587
Secure (SSL) SSL 465
IMAP Server (Incoming Messages) Non-Encrypted AUTH 143
Secure (TLS) StartTLS 143
Secure (SSL) SSL 993

 

This list is without any warranties and not sorted alphabetically.
See also: A List of SMTP and POP3 Mail Server (Mail Server List)