Subject: Re: Greg Woods - please fix your mailer!
To: None <>
From: Bill Studenmund <>
List: current-users
Date: 07/06/1998 12:14:48
On Mon, 6 Jul 1998 wrote:

> In message <>, Bill 
> Studenmund writes:
> >  This message is in MIME format.  The first part should be readable text,
> >  while the remaining parts are likely unreadable without MIME-aware tools.
> >  Send mail to for more info.
> Hmph.

Sorry. Pine of OCURSE strips this part off. :-)

> >... while talking to
> >>>> MAIL From:<> SIZE=2829
> ><<< 550 '<>SIZE=2829' sender address target
> >'' is not a valid e-mail domain (there is no MX record
> >for it). 
> This is probably a spam filter.  The idea is to reject "rapid fire mail
> server" style messages, which are sent directly from dialups, and only
> accept mail from machines which appear to be mail exchangers.  I believe
> this is misguided.

I must agree. :-)

> >??? What is this poop? Since when do hosts HAVE to have MX records?
> It's a common bug for some MTA's to be confused and unable to talk to a
> host without an MX record for it.

Weird. How would one nuke such beasts? I can see wanting to do a dns
lookup on messages to make sure they kinda come from a valid account, well
a real machine, but requiring an MX record's a bit much. :-(

Take care,