- Plesk for Linux
How to configure Mailman to use a remote SMTP server?
Connect to the server via SSH.
A remote SMTP server can be configured in
using the following directives:
CONFIG_TEXT: # SMTP host and port, when DELIVERY\\_MODULE is 'SMTPDirect'. Make sure the
# host exists and is resolvable (i.e., if it's the default of "localhost" be
# sure there's a localhost entry in your /etc/hosts file!)
SMTPHOST = 'example.com'
SMTPPORT = 25
Mailman hasn't any ability to authorize itself on mail servers, so the server IP should be white listed on the remote mail server.