Resolved
From: ray (ray_at_grana.com)
Date: 05/16/04
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Date: Sun, 16 May 2004 18:25:02 -0500
This resolved my issues.
"ray" <ray@grana.com> wrote in message
news:%235fD1WgOEHA.540@TK2MSFTNGP11.phx.gbl...
> Thanks for the input. This all works ok.
>
> From the exchange server, I'm able to telnet to hotmail or other mail
> servers and send messages ok. Thus, my firewall is working ok.
>
> I can also run nslookup and it resolves the addresses ok.
>
>
>
>
> "Jeff Thibodeau [MS]" <jeffthi@online.microsoft.com> wrote in message
> news:ibFJqjfOEHA.2692@cpmsftngxa10.phx.gbl...
> > Hi Ray,
> >
> > Two things jump to my mind reading this. DNS and Firewall Ports.
> > If Exchange is unable to resolve the MX records of the domains you are
> > sending to the messages will NDR. You can check this using nslookup on
> the
> > Exchange server. Go to a command prompt type nslookup <enter> set
> type-mx
> > <enter> and a domain Microsoft.com. It should return mail records and
> IPs.
> >
> > I this is working use telnet (from the Exchange server to one of the IPs
> > listed on port 25. If this fails it would appear the Firewall setting
> have
> > been changed. Make sure your firewall will allow inbound and outbound
> > traffic on port 25 and check the NAT'ing to make sure the correct
internal
> > IP is being used.
> >
> > Jeff Thibodeau
> > Microsoft
> > --
> > Get Secure! - www.microsoft.com/security
> > --
> > When responding to posts, please "Reply to Group" via your newsreader so
> > that others may learn and benefit from your issue.
> > --
> > This posting is provided "AS IS" with no warranties, and confers no
> rights.
> > ==========================================================
> >
> >
> >
> > --------------------
> > From: "ray" <ray@grana.com>
> > Subject: Unable to Send Mail to External Sources
> > Date: Thu, 13 May 2004 18:09:32 -0500
> >
> >
> > My Exchange Server 2000, latest service packs, has been running
flawlessly
> > for last year. Within the last 2 days, I am unable to send mail outside
> of
> > my firewall. Internal mail works correctly. From outside of the
firewall
> I
> > am able to telenet into the server on port 25 and send mails internally,
> but
> > not externally. After about a day, the message time out and send me a
> NDR.
> > I can receive mail from external sources without any issues.
> >
> > The NDR just states that message was incomplete because it couldn't
> connect
> > with the external server in the time specified.
> >
> > I am now at a total loss. I have even put my server outside of the
> firewall
> > and this still does not resolve the issue.
> >
> > Any advice would be greatly appreciated.
> >
> > Thanks,
> >
> > Ray
> >
> >
> >
>
>
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