Server relay is ignored if the FortiMail unit is operating in transparent mode, and “Relaying using FortiMail’s built-in MTA versus unprotected SMTP servers” on page 266 is enabled.
Server relay is ignored for email that matches an antispam or content profile where you have enabled Deliver to alternate host.
Relay server name
Enter the domain name of an SMTP relay.
Relay server port
Enter the TCP port number on which the SMTP relay listens.
This is typically provided by your Internet service provider (ISP).
Enable to initiate SSL- and TLS-secured connections to the SMTP relay if it supports SSL/TLS.
When disabled, SMTP connections from the FortiMail unit’s built-in MTA or proxy to the relay will occur as clear text, unencrypted.
This option must be enabled to initiate SMTPS connections.
If the relay server requires use of the SMTP AUTH command, enable this option, click the arrow to expand the section and configure:
• User name: Enter the name of the FortiMail unit’s account on the SMTP relay.
• Password: Enter the password for the FortiMail unit’s user name.
• Authentication type: Available SMTP authentication types include:
• AUTO (automatically detect and use the most secure SMTP authentication type supported by the relay server)
• PLAIN (provides an unencrypted, scrambled password)
• LOGIN (provides an unencrypted, scrambled password)
• DIGEST-MD5 (provides an encrypted hash of the password)
• CRAM-MD5 (provides an encrypted hash of the password, with hash replay prevention, combined with a challenge and response mechanism)