How to test PowerMTA SMTP using telnet

telnet localhost 25

ehlo localhost

mail from: username@from-domain.tld

rcpt to: username@to-domain.tld

data

Subject: PMTA SMTP Check

This is just an SMTP conf Check. You may disregard.

.

quit

tail -f /var/log/pmta/pmta.log

pmta show queues