esd via Postfix-users:
> I found a problem during testing. Version postfix 3.9.0.
> When using dovecot sasl for verification, if dovecot dies or the
> network connecting to dovecot fails, smtpd will not be able to
> return 220. Mail cannot be received.
You enabled SASL AUTH on the PORT 25 service. Don't do that. Enable
SASL AUTH only for the submission, smtps, etc. services that must
require SASL authentication.
> I used net socket to connect to dovecot. Is it possible to judge
> the connection status of dovecot? If dovecot is unavailable, sasl
> is considered disabled until dovecot sasl returns to normal. This
> should not affect other mail services.It will not cause security
> risks.
It will cause loss of mail because smtpd will reject mail from an
unauthenticated client.
Wietse
_______________________________________________
Postfix-users mailing list -- postfix-users@postfix.org
To unsubscribe send an email to postfix-users-le...@postfix.org
