The mail server, Artemis , was dying.
First, she carved out the IP pools. She isolated the transactional emails—password resets, receipts—into a high-speed lane. These were the thoroughbreds. They needed pristine, dedicated IP addresses with strict throttling: max-smtp-out 20 per domain, throttle 5 per second. She gave them their own pool: ip 192.168.1.10-192.168.1.15 . pmta configuration
Vera saved a backup, added a new sticky note to the monitor: PMTA config: be gentle, be verified, be boring. And for the first time in a week, she went home before sunrise. The mail server, Artemis , was dying
She looked back at the config file. It was no longer a spell book. It was a constitution. Each directive a law: max-msg-rate was mercy. dkim-sign was identity. bounce-domain was accountability. The mail server
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