We had a similar problem last week - we could receive mail from anybody and send mail to most domains, but there were a number of domains we couldn't. Our problem turned out to be a black hole router at an upstream provider.
You might check this article for a good lead: http://support.microsoft.com/default.aspx?scid=kb;EN-US;q159211 Aloha, -Ben- Ben M. Schorr, MVP-Outlook, CNA, MCPx3 Director of Information Services Damon Key Leong Kupchak Hastert http://www.hawaiilawyer.com > -----Original Message----- > From: Bob Razler [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, March 26, 2002 7:45 AM > To: Exchange Discussions > Subject: RE: Host Unreachable > > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > OK. telnet mail.spectra.ca 25 works fine. > > > > Robert J. Razler, Esq. > Approvals Manager > Heritage Building Group, Inc. > Suite A-100 > 3326 Old York Road > Furlong, PA 18925 > 215.794.0550, ext. 117 > www.heritagebuildinggroup.com > [EMAIL PROTECTED] > PGP Public Keys available at: > http://www.razler.com/PGPKey.htm > > - -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] On Behalf Of > Atkinson, Daniel > Sent: Tuesday, March 26, 2002 11:38 AM > To: Exchange Discussions > Subject: RE: Host Unreachable > > Forget the ping, it may well be discarded by a firewall. > Telnet to the remote mailserver on port 25 by typing this > into the command line... > > telnet mail.spectra.ca 25 > > if that fails try.... > > telnet 24.85.12.237 25 > > if that works, look at your DNS. If it fails, phone your ISP. > > Dan. > > > > > - -----Original Message----- > From: Scott Force [mailto:[EMAIL PROTECTED]] > Sent: 26 March 2002 16:29 > To: Exchange Discussions > Subject: RE: Host Unreachable > > I'm not at the site where I can ping from the Exchange server > but I will give that a shot this afternoon. I have been > having some intermitant DNS issues so that must be it. > Thanks to all that replied. Scott. > > > > I can get there from here. > > See if you can telnet to their mail server > (mail.spectra.ca) FROM the > > exchange server. If you cant, you probably have some DNS issues. > > > > -----Original Message----- > > From: Scott Force [mailto:[EMAIL PROTECTED]] > > Sent: Tuesday, March 26, 2002 7:48 AM > > To: Exchange Discussions > > Subject: Host Unreachable > > > > > > Good Morning, > > I'm running Exchange 5.5/4 (NT4.0/6a). I'm having problems > > sending e-mail to a specific domain, spectra.ca or > > spectraesolutions.com. Any e-mail to those domains sits in my IMS > > outbound queue. They can send to > me > > but when I reply I run into the same problem. I've contacted the > > admin of that domain and he told me they are running > Exchange 2000 and > > they are not requiring reverse DNS lookup. Any thoughts? > > > > _________________________________________________________________ > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > Archives: http://www.swynk.com/sitesearch/search.asp > > To unsubscribe: mailto:[EMAIL PROTECTED] > > Exchange List admin: [EMAIL PROTECTED] > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > > -----BEGIN PGP SIGNATURE----- > Version: PGPfreeware 6.5.8 for non-commercial use <http://www.pgp.com> > > iQA/AwUBPKCzuGwjiy2yaukAEQKD7QCg0viMM4zNRVPUvgkjG88zVLqe1HUAoLvZ > OGPkBrW1nWBV8GG59vN5Xq2T > =BJub > -----END PGP SIGNATURE----- > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
