[ On Wed, April 15, 1998 at 13:00:44 (-0600), Sherwood Botsford wrote: ]
> Subject: Re: [EXIM] DNS
>
> I'm engaged in just such a battle right now. TelusPlanet.net
> is the Alberta ISP branch of the the phone company.
> Their mail server identifies itself as mailgate instead
> of as mailgate.telusplanet.net, and people wonder why
> my site doesn't accept email.
>
> Last round: 'We're looking into it, but it's not an overnight
> fix due to the other implications.' Must be running NT or something.
> (I tried telneting to their port 25, but I get a bad port number.
> So how does any mail reach them?)
Quite the contrary:
19:07 [2112] $ host -t mx telusplanet.net
telusplanet.net MX 9 mail2.agt.net
telusplanet.net MX 8 mailgate.telusplanet.net
19:26 [2113] $ telnet mailgate.telusplanet.net 25
Trying 199.185.220.53...
Connected to mailgate.telusplanet.net.
Escape character is '^]'.
220 mailgate ZMailer Server 2.99.49p10-s10 #1 ESMTP ready at Wed, 15 Apr 1998 18:27:30 -0600
quit
221 2.0.0 mailgate Out
Connection closed by foreign host.
19:31 [2114] $ telnet mail2.agt.net 25
Trying 198.80.55.16...
Connected to mail2.agt.net.
Escape character is '^]'.
220 clgrps04.agt.net ZMailer Server 2.99.43 #1 ESMTP ready at Wed, 15 Apr 1998 18:31:34 -0600
quit
221 2.0.0 clgrps04.agt.net Out
Connection closed by foreign host.
ZMailer is about as far from NT as you could possibly ever hope to get! ;-)
I'm surprised though that ZMailer can even be configured to give the
wrong HELO address. It's normally very pedantic about what it accepts.
(In fact some local ZMailer users I know about have also implemented
HELO verification....)
Odd too is that the mailer on mail2.agt.net does seem to know it's own
fully qualified name. Unfortunately they haven't got their DNS right
for it though:
19:32 [2117] $ host -A mail2.agt.net
!!! mail2.agt.net address 198.80.55.16 maps to clgrps04.agt.net
(i.e. they need another PTR.)
(Actually, I hope I don't have to bite my tongue on that -- I'd heard
that Border/Secure had ported their firewall to NT, and since they use
ZMailer in that product, perhaps they ported it too! ;-)
--
Greg A. Woods
+1 416 443-1734 VE3TCP <gwoods@???> <robohack!woods>
Planix, Inc. <woods@???>; Secrets of the Weird <woods@???>
--
*** Exim information can be found at
http://www.exim.org/ ***
