чт, 18 мар. 2021 г. в 02:27, Thomas Bohl <opensmtpd-misc-64...@aloof.de>:
> > > what is address=local? is this smtpd.sock? > > As far as I understand it, yes. > (Which makes the first part of my original answer somewhat wrong. I was > thinking about something else while answering.) > > > > I cannot understand in what moment connection automatically authenticates. > > When you use mail, sendmail is used, which is smtpctl (see > /etc/mailer.conf). smtpctl uses /var/run/smtpd.sock to communicate with > smtpd. Connections via /var/run/smtpd.sock are (as you can see in your > logs) from local. This local connections are automatically authenticated. > As far as I understand, connections over IP (even from 127.0.0.1) are > never automatically authenticated, in order to prevent accidental open > relays. > Thank's a lot! Now everything is clear!
