How to configure Postfix for relaying mail with authentication.
Issue
- My system cannot send mail directly to other domains.
- Need to configure
Postfix
to send emails via my ISP relay mail host.
Environment
- Red Hat Enterprise Linux (RHEL) 6
- Red Hat Enterprise Linux (RHEL) 7
- Red Hat Enterprise Linux (RHEL) 8
- Red Hat Enterprise Linux (RHEL) 9
postfix
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