At 4:27 PM -0700 9/6/06, Joe Wagner wrote:
Hi folks,
I confess to being a bit sleep deprived these days, but I
can't figure out why some mail servers are trying to send email to
my web server rather than the mail servers. I.e. they are trying to
send to the machine with the A record for hypertouch.com which is a
webserver rather than to hypertouch.com's mail servers which are at
other IP addresses. Now the web server is running a rudimentary
mail server but it shouldn't be getting any incoming email and so
rejects the attempts as unauthorized relays.
I'd credit this to badly setup third party mailers, but Stanford
University's mail server recently bounced a message after trying to
send to hypertouch.com and I'd hate to think their outgoing mail
server is broken.
Are there any circumstances that a mail server should ever send to
the A record of a domain when that domain has MX records pointing
elsewhere? We recently had a network outage so all mail servers
were down. So if Stanford couldn't get to the machines pointed to
by the MX records, can it grab the A record as a legitimate
destination for email (and cache that result). I've turned off the
mail server functionality of the webserver in the short term but I
can't understand why I need to?
Any advise or illumination?
Sounds like it might be a DNS problem... what domain are we talking
about, and what's the IP/name of the server that's getting mail sent
to it?
Is it possible that they're replying to mail sent via a web form and
is being sent with the web server's domain name in the FROM?
--
Bill Christensen
<http://greenbuilder.com/contact/>
Green Building Professionals Directory: <http://directory.greenbuilder.com>
Sustainable Building Calendar: <http://www.greenbuilder.com/calendar/>
Green Real Estate: <http://www.greenbuilder.com/realestate/>
Straw Bale Registry: <http://sbregistry.greenbuilder.com/>
Books/videos/software: <http://bookstore.greenbuilder.com/>
#############################################################
This message is sent to you because you are subscribed to
the mailing list <[email protected]>.
To unsubscribe, E-mail to: <[EMAIL PROTECTED]>
To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]>
To switch to the INDEX mode, E-mail to <[EMAIL PROTECTED]>
Send administrative queries to <[EMAIL PROTECTED]>
