That's an invalid MX record; it's the same as if it didn't exist. If you
try to connect to an Internet host (remember, the RFCs require a host name
there, not an IP address) named "208.39.158.132", your DNS resolver would
look for a TLD of "132", which doesn't exist. The problem is that they put
an IP in there, and an IP isn't valid. Kind of like putting a phone number
in the place of someone's address that you are sending mail to; it just
won't work.
You can check the domain at http://www.declude.com/tools using the "DNS
Report" to see the problem more clearly.
-Scott
At 06:06 PM 6/28/01 -0400, you wrote:
>I don't know about that. I run a lookup and I get a valid MX record:
>
>HEADER:
> opcode = QUERY, id = 43594, rcode = NOERROR
> header flags: reply, want recursion, recursion avail.
> questions = 1, answers = 1, auth. records = 3, additional = 3
>QUESTIONS:
> comcastbusiness.com., type = XX, class = 1
>ANSWERS:
>-> comcastbusiness.com.
> type = MX, class = 1, ttl = 3180, dlen = 18
> preference 100, mail exchanger = 208.39.158.132.
>
>
>--
>Scot
>
>
>----- Original Message -----
>From: "R. Scott Perry" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Thursday, June 28, 2001 2:05 PM
>Subject: Re: [IMail Forum] Problems with SMTP mail delivery
>
>
> >
> > >06:28 11:23 SMTPD(43A500DE) [1.2.3.4 ] RCPT TO:
><[EMAIL PROTECTED]>
> > >
> > >Notice how the message is accepted for delivery from the client. SMTP
>then
> > >tries to process the message from the queue, but immediately re-queues
>it.
> > >There doesn't appear to be any processing taking place. No attempt to
> > >connect, no MX failure, nothing.
> >
> > The problem is that there IS NO MX record. There is an invalid MX record,
> > but it does not point to a valid server host name. It looks like it might
> > be an IP address, which isn't valid in an MX record.
> >
> > >I also notice that the extension gets changed to an SMP extension. I
>believe
> > >this is done for "problem" messages. From this point forward, it doesn't
> > >appear the message is ever attempted to be re-delivered. The queue
>processor
> > >just increments the attempt count and skips processing of the message.
> >
> > That's because it never has a chance to deliver it. It's kind of like
>what
> > the postal service does if you send a letter addressed to "My brother's
> > house" or "Santa Claus". It just can't be delivered accurately.
> >
> >
> > -Scott
> >
> > Declude: Anti-virus, Anti-spam and Anti-hijacking solutions for
> > IMail. http://www.declude.com
> >
> >
> >
> > Please visit http://www.ipswitch.com/support/mailing-lists.html
> > to be removed from this list.
> >
> > An Archive of this list is available at:
> > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
> >
>
>
>Please visit http://www.ipswitch.com/support/mailing-lists.html
>to be removed from this list.
>
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