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XCCDF
Guide to the Secure Configuration of Alibaba Cloud Linux 2
Services
Mail Server Software
Configure SMTP For Mail Clients
Configure System to Forward All Mail through a specific host
Configure System to Forward All Mail through a specific host
An XCCDF Rule
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Configure System to Forward All Mail through a specific host
Medium Severity
Set up a relay host that will act as a gateway for all outbound email. Edit the file
/etc/postfix/main.cf
to ensure that only the following
relayhost
line appears:
relayhost =