Postfix : Allow only few Client IPs to send mail to particular domain
Issue
- How to configure postfix to allow only few client IPs to send email to specific domains as per requirement
- How to restrict other client IPs to send to certain domains in postfix.
Environment
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Postfix 2.10 or later
- Email relay
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