I finally got around to take another look, sorry for the delay. The
problem is the "noplaintext" in smtpd_sasl_security_options Here's a
small config diff that fixes the problem:
# diff -Naur main.cf.bug main.cf
--- main.cf.bug 2021-09-15 19:14:02.919982259 +0000
+++ main.cf 2021-09-15 19:18:04.765338947 +0000
@@ -48,8 +48,7 @@
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_local_domain =
-smtpd_sasl_security_options = noanonymous,noplaintext
-smtpd_sasl_tls_security_options = noanonymous
+smtpd_tls_auth_only = yes
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions =
permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
I believe this confirms the problem to be a local config one so I'll
mark the bug as invalid. Let me know if the above diff doesn't make it
work for you.
** Changed in: postfix (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1940603
Title:
postfix/smtpd: fatal: no SASL authentication
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