: Keeps connections "warm" without overstaying your welcome. retry-interval
For ongoing success, implement version control for your configuration, establish automated monitoring of queue sizes and delivery rates, and maintain a disciplined warm-up process for all new sending IPs and domains. With these practices in place, your PowerMTA infrastructure will deliver reliably for years to come. powermta configuration guide top
If your PowerMTA instance accepts inbound relay or bounce processing traffic, enable authentication checks to protect your environment from spoofing: auth-spf yes auth-dkim-verify yes Use code with caution. 5. Advanced Bounce and Feedback Loop (FBL) Routing : Keeps connections "warm" without overstaying your welcome
To track which recipient bounced, use Variable Envelope Return Path (VERP). implement version control for your configuration
