What is postfix/smtps/smtpd? | pressku.com

I cognize that postfix/smtpd is for incomming Mails, smtp for outgoing Mails. But I do spot successful my logfile respective entries pinch postfix/smtps/smtpd. What is this for?

I deliberation they are connected to nan login because of nan sasl_method introduction successful immoderate of nan lines.