Cisco30 Hi I carried out an email security test on immuniweb.com, and I would like to know how to correct the SMTP authentication problem without TLS in Mailcow (see image), thank you
DocFraggle Seems to be a buggy checker, as postfix is already configured this way root@638784780e84:/# postconf -n smtpd_tls_auth_only smtpd_tls_auth_only = yes
invaliduser I had an issue like this, TLS should always be available but you can get these errors when your certs are invalid make sure you take a look at https://docs.mailcow.email/post_installation/firststeps-ssl/ and https://docs.mailcow.email/post_installation/reverse-proxy/r_p/ if you have it behind a reverse proxy i use nginx-proxy-manager so i have a cron on the host that copies the correct files over every month and restarts mailcow’s containers
DocFraggle No, I ran the check as well with the above website, it showed the same faulty result for my mailcow. My certificate is setup properly. Guess they want to generate new customers this way, should be reported…
Cisco30 For more security I implemented an additional security policy by configuring MTA-STS and DANE.
