- The following messages are outputted during boot process.
May 24 16:56:15 R75 systemd: Failed to start Postfix Mail Transport Agent. May 24 16:56:15 R75 systemd: Unit postfix.service entered failed state. May 24 16:56:15 R75 systemd: postfix.service failed.
- What's the meaning of these messages?
- Is it harmful to my system?
- Red Hat Enterprise Linux 7
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