Re: [Exim] No mail receiving from internet.

On 2002-02-18 at 23:06 -0000, John Fletcher wrote:
> I can also send local mails between these 'local' domains. BUT I just can't
> seem to figure out why I cannot get any mail sent from any other domain to
> these domains. For instance, sending from the TALK21.com web mail interface
> to john@??? . It just goes to dev/null. I have not rec'd any
> 'bounces' , nor do I get any thing in the EXIM log files to say its been
> rejected, no a sniff in fact in any logs on EXIM....
>
> DNS looks fine for the domains. :

> itsupplies.net. 80243 MX 10 mail.itsupplies.net.
> itsupplies.net. 80243 MX 0 mail.itsupplies.net.

The same hostname at two different MX values isn't "fine", but isn't
causing this problem.

If I try to connect to mail.itsupplies.net on port 25, the packets are
blackholed. Are you sure that you're not packet-filtering TCP/25?

If I try to connect to itsupplies.net on port 25, I get a connection.
This is strange, since mail.itsupplies.net != itsupplies.net, and the MX
records mean mail for itsupplies.net will _always_ go towards
mail.itsupplies.net. So the only reason for an SMTP service to be
publically listening on itsupplies.net is if it's there for some other
domain.

: %; telnet itsupplies.net 25
Trying 212.4.208.121...
Connected to itsupplies.net.
Escape character is '^]'.
220 ultra21.uk2net.com ESMTP Sendmail 0.0.0/0.0.0 ready at Tue, 19 Feb 2002 02:09:09 GMT
QUIT
221 2.0.0 ultra21.uk2net.com closing connection

Sendmail? Sendmail 0.0.0/0.0.0 ? It returns ENHANCEDSTATUSCODES in the
EHLO response, so this isn't Exim dressed up to look like Sendmail in
the connection banner.

Sure you have your DNS and packet-filtering set up correctly?
--
If Windows is the solution, could we please have the problem back?