First, please do not top post.
On Mon, Sep 12, 2022 at 09:00:00AM -0400, Dave Parker wrote: > Thanks for the advice. Just to clarify, this is an enterprise SMTP server > for a university, and we have used Sendmail for at least 25 years now. I > have deployed and configured Sendmail on probably hundreds of servers over > the years, but most of them are on internal networks and relay mail > through this SMTP server. This is a high traffic SMTP server and its > uptime is critical, so I would prefer to stay with Sendmail because it has > always been rock solid in the past. Understood. And I apologize. I assumed because of the old version of your existing installation a less actively maintained situation and made a snap judgement about your experience. I also never said sendmail is not a solid MTA. I stated it is extremely difficult to maintain. Also other MTA are well suited for high traffic servers. Exim is used by ISPs with extremely high traffic. > > The issue here is that Sendmail with SASL auth doesn't seem to work the > same way in Bullseye as it did in Wheezy, which is probably to be expected, > given the large gap between versions. I'm just trying to track down > anything I may have missed in my new Bullseye configuration, since the > exact same config works fine in Wheezy. > Well, in my previous post I might hinted at your issue. Please check if courier-authdaemon or dovecot-core is installed. Both provide an sasl authdaemon. I do not know anything about your old installation so you have to figure out, how and where the unix socket of the daemon is located. If you use a chroot environment you must make sure the socket is accessible to sendmail. Cheers, -H [...] -- Henning Follmann | hfollm...@itcfollmann.com