Hello together Installing the postfix-mta-sts service, and on my view this will running now,
but how i can check this, if this service are running up and correct? after watching mail.log i dont see nothing more then else Main.cf smtp_tls_policy_maps = socketmap:inet:127.0.0.1:8461:postfix smtpd_tls_key_file = /etc/letsencrypt/live/nmail.caloro.ch/privkey.pem smtpd_tls_cert_file = /etc/letsencrypt/live/nmail.caloro.ch/fullchain.pem root@r:/lib/systemd/system# netstat -an | grep 8461 tcp 0 0 127.0.0.1:8461 0.0.0.0:* LISTEN root@r :/# systemctl status postfix-mta-sts postfix-mta-sts.service - Postfix MTA STS daemon Loaded: loaded (/lib/systemd/system/postfix-mta-sts.service; enabled; vendor preset: enabled) Active: active (running) since Fri 2020-10-02 11:10:34 CEST; 20min ago Main PID: 26294 (mta-sts-daemon) Tasks: 2 (limit: 4915) CGroup: /system.slice/postfix-mta-sts.service L-26294 /usr/bin/python3 /usr/local/bin/mta-sts-daemon --config /etc/mta-sts-daemon.yml Oct 02 11:10:34 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:10:34 INFO MAIN: MTA-STS daemon starting... Oct 02 11:10:34 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:10:34 INFO MAIN: Starting eventloop... Oct 02 11:10:34 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:10:34 INFO MAIN: uvloop is not available. Falling back to built-in event loop. Oct 02 11:10:34 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:10:34 INFO MAIN: Eventloop started. Oct 02 11:10:34 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:10:34 INFO MAIN: Server started. Oct 02 11:10:34 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:10:34 INFO MAIN: Proactive policy fetcher started. Oct 02 11:10:34 nmail.caloro.ch systemd[1]: Started Postfix MTA STS daemon. Oct 02 11:10:35 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:10:35 INFO PF: Proactive policy fetching for all domains in cache started... Oct 02 11:10:35 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:10:35 INFO PF: Proactive policy fetching for all domains in cache finished. Oct 02 11:15:32 nmail.caloro.ch mta-sts-daemon[26294]: 2020-10-02 11:15:32 WARNING STS: Bad netstring message received