benchmarks/smtp-benchmark 1.0.4p3 OpenBSD

smtp-benchmark consists of two programs, smtpsend and smtpsink. Whereas smtpsend is used to send generated e-mail messages using SMTP to a mail transfer agent, smtpsink is designed to dispose of received messages as quick as possible.

smtpsend measures the time spent sending e-mails and the number of e-mails actually sent and outputs statistics after the program run.

smtpsend can fork one or more parallel senders each using one or more sequential connections to a SMTP server to deliver one or more messages per connection.

smtpsink comes in handy when the relaying performance of a MTA is to be measured.