Re: OS 5.0.5: MMDF has stopped accepting SMTP requests from local lan clients

From: Barry Wiseman (bwiseman_at_qwest.net)
Date: 04/28/03 

Date: Mon, 28 Apr 2003 16:19:12 -0400

"John DuBois" <spcecdt@deeptht.armory.com> wrote in message
news:3eaca3c7$0$79557$8eec23a@newsreader.tycho.net...
> In article <qniqa.654$Oa7.58121@news.uswest.net>,
> Barry Wiseman <bwiseman@qwest.net> wrote:
> >This was working for years, AFAIK no config changes recently made. My
mail
> >domain is hosted on my OS 5.0.5 box, madonna.gensoftdes.com. Users
> >send/receive mail from Windows desktops via Outlook Express -- until a
few
> >days ago, when they started getting messages like
> >
> >550 (NAUTH) Bad authorization: sender '@anne:duck@gensoftdes.com' not
> >authorized to send to address 'addressee@domain.com'
>
> Did the contents of /etc/resolv.conf or /etc/hosts change? The source IP
> address is mapped to a hostname (in this case 'anne') using the usual
resolving
> mechanism configured with /etc/resolv.conf.
>
Thanks for responding. My original post should have mentioned I checked
this stuff already. /etc/resolv.conf unchanged since my last game of
musical ISP's, over a year ago. /etc/hosts entry for 'anne' unchanged for
years. Restore of /etc/hosts from March backup (weeks before problem began)
no help.

At someone's suggestion, I've completely unplugged mmdf and replaced it with
smail, which on first impression seems like easier to administer, fewer
moving parts, better logging, plus it doesn't suffer from whatever's become
broken in my environment. (It's explicitly configured to ignore -- other
than a logfile warning -- badly formed hostnames if they originate locally
on my LAN.)