High-speed sending + high bounce rates = instant blacklisting.
vmta main-sender auto-warmup true pool pool-high-volume dkim-signature "main" # See DKIM section below always-allow-vmta-domain true max-smtp-out 200 queue-type shared sample powermta configuration file hot
Below is a sample PowerMTA configuration file that demonstrates some of the key settings and features: High-speed sending + high bounce rates = instant
adaptive-throttle enabled true min-rate 10/hour max-rate 10000/hour step-up-interval 300 sample powermta configuration file hot