With postfix using "smtpd_sasl_type = dovecot", you shouldn't need sasl2-bin.
I think your test with telnet on port 25 will not work because you have "smtpd_sasl_security_options = noanonymous,noplaintext" which disables "plaintext" type of auth and both LOGIN and PLAIN are in the clear. It's generally advised to enable SASL/authenticated relaying only on TCP/465 and/or TCP/587 where you can (and should) require TLS encryption. Once you use one of those port with mandatory encryption, you can set "smtpd_sasl_tls_security_options = noanonymous" (note the "tls" in the name). For more information, please refer to those: https://doc.dovecot.org/configuration_manual/howto/postfix_and_dovecot_sasl/ http://www.postfix.org/SASL_README.html#smtpd_sasl_security_options HTH, Simon -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940603 Title: postfix/smtpd: fatal: no SASL authentication To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1940603/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
