Calculate how many messages per hour your PowerMTA infrastructure can handle based on server configuration, IP count, and target ISP mix. Also get server hardware recommendations.
Infrastructure Parameters
Total IPs in your sending pool
PowerMTA max-smtp-out setting per IP (Gmail HIGH reputation: 8-10)
max-msg-per-conn setting (typical: 50-200)
Time to deliver msgs-per-session messages (typical: 30-90s)
% of messages that will be deferred and retried
Affects disk I/O and network requirements
Throughput Results
Throughput Reference
Gmail HIGH rep (8 connections) ~720 msgs/min per IP = ~1M msgs/day
Outlook (5 connections) ~450 msgs/min per IP = ~650K msgs/day
Yahoo (6 connections) ~540 msgs/min per IP = ~780K msgs/day
