Technical Specifications
Protocols Supported
POP3 (110) -
Standard POP3 port for general use
POP3S -
Encrypted Port for POP3
IMAP (143) - Standard IMAP
IMAPS - Encrypted Port for IMAPS
SMTP (25) - Standard SMTP in/out for external email (TLS Enabled)
SSMTP (465) - Non-Standard Port for
SMTP using SSL only (EOL – DON’T USE)
SMTPS (587) - SMTP Auth based user
access supporting (TLS Enabled).
- Clients
should always use this port by default.
SMTPS(2525) - Alternative TLS enabled
port for cases where the other ports are blocked by firewall