smtpd-enforce-spf no smtpd-enforce-dkim no
feedback-loop-processor pipe /usr/local/bin/fbl-processor.sh log-file /var/log/pmta/fbl.log
<!-- Run as a background service --> <spool-enabled>yes</spool-enabled> sample powermta configuration file hot
: Never start a new "hot" config at full speed. Use the max-msg-per-hour directive to gradually increase volume over 2–4 weeks.
# Default limits for all domains max-smtp-out 20 max-msg-per-connection 100 retry-after 10m # Specific limits for Gmail to avoid "too many connections" max-smtp-out 5 max-msg-rate 200/h Use code with caution. Copied to clipboard Essential Configuration Tips Copied to clipboard Essential Configuration Tips # TLS
# TLS settings tls_cert_file = /path/to/tls_cert.pem tls_key_file = /path/to/tls_key.pem
Below is a configuration designed for a scenario with multiple IPs, DKIM signing, and optimized connection settings to maximize throughput while minimizing risk of immediate blacklisting. If you share with third parties, their policies apply
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Are you looking to optimize this for a specific (like Gmail) or for a bulk marketing scenario?
This article provides a comprehensive, high-performance "hot" configuration for PowerMTA (PMTA). When we say a configuration is we mean it is optimized for high-volume throughput, excellent deliverability, and real-time bounce/FBL handling.
To adapt this configuration to your specific needs, please share: The in your rotation pool Your estimated peak hourly email volume