Re: [PLUG] Trouble with SendMail

[JP Toto <viceclown@yahoo.com>]

Here is my scenario:
 
I have an exchange server. It is hosting 'abc.com'.
The Exchange server is able to communicate with every
other domain on the internet except for domains on
this particular sendmail server. We will use the
example 'xyz.com' as the domain hosted on the sendmail
server in this example. When anyone on the 'abc.com'
network attempts to communicate with 'xyz.com' it is
unable to do so. Upon these attempts, the log file
below appears in the sendmail logs and an error
stating 'unable to deliver to remote server' appears
in the Exchange logs. Now, here is the twist in the
scenario:
       The company which owns the sendmail server is a
hosting service. They had expected to get the hosting
account for 'abc.com' and had prematurely setup a zone
file in their DNS servers for 'abc.com'. My guess is
that this premature zone file in their LOCAL DNS
servers is what is causing the problem. When sendmail
recieves the smtp request, I assume that sendmail then
attempts a DNS lookup. because it has a zone file
(though it shouldnt be there) in thier LOCAL DNS
server for 'abc.com', it is resolving the domain to
bogus IP information (whatever is entered in the
premature zone file) and therefor the 'abc.com'
exchange server is timing out and disconnecting. Let
me know what you think. Thanks!  - JP

-----Original Message-----
--- gabriel rosenkoetter <gr@eclipsed.net> wrote:
> On Mon, Oct 29, 2001 at 08:58:36AM -0800, JP Toto
> wrote:
> > Oct 29 10:25:45 pop01 sendmail[14210]: NOQUEUE:
> [64.83.74.37] did not issue MAIL/EXPN/VRFY/ETRN
> during connection to MTA
> > Oct 29 11:14:49 pop01 sendmail[25103]: NOQUEUE:
> [64.83.74.37] did not issue MAIL/EXPN/VRFY/ETRN
> during connection to MTA
> > [root@pop01 /root]# grep three04 /var/log/popper
> > Oct 29 11:04:01.717 2001 [22618] three04 at
> 64.83.74.37 (64.83.74.37):
> > Oct 29 11:04:01.718 2001 [22618] Stats: three04 0
> 0 1 816 64.83.74.37 64.83.74.37 
> > 
> > Any thoughts would be greatly appreciated. Thanks!
> 
> I hope I've reformatted the above correctly.
> 
> If so, it sounds like you've got a POP connection
> trying to talk to
> an SMTP server. That won't work so well. Either
> that, or you're seeing
> popper not wrap things correctly communicating with
> Sendmail, but
> since Sendmail seems to be reporting a connection
> directly from the
> client, I don't think that's the case.
> 
> Is 64.83.74.37 under your control? What's the client
> software?
> 
> A little more description of your set up would help
> to figure this
> out.
> 
> -- 
>        ~ g r @ eclipsed.net
> 

> ATTACHMENT part 2 application/pgp-signature 



=====
JP Toto
ViceClown@yahoo.com

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