Is it possible that you isp is using variable length subnetting and did = not add a static route for each Variable Length subnet, thus hoping it = would use the Default Gateway when a static entry is not found? If the = ISP is using variable length subnets, ALL of the subnets have to be = accounted for. Joe -----Original Message----- From: Shawn R. Beairsto [mailto:sbeairst@xxxxxxx] Sent: Monday, March 24, 2003 12:25 PM To: msexchange@xxxxxxxxxxxxx Subject: [msexchange] Re: Problem receiving email from 1 domain A bit more info... We are definitely unable to telnet on port 25 on each others exchange = =3D servers. I've tried going to other servers on the net and had no =3D problem. He has as well. he mentioned to me today that our ISP had some = =3D routing issues a couple of weeks ago.... could this possibly be an issue = =3D on our ISP's network? they say NO.... and they know everything of =3D course. Can anyone out there telnet to my box? or is it isolated to him? thanks -----Original Message----- From: Shawn R. Beairsto=3D20 Sent: Monday, March 24, 2003 11:14 AM To: Msexchange (E-mail) Subject: [msexchange] Problem receiving email from 1 domain Hi all, =3D20 We have a strange problem that cropped up early last week, and I could = =3D use your help. We cannot recieve email from a company that used to send = =3D to us quite regularly. We are receiving email from everywhere else in = =3D the world. I've been working with their admin guy and they have no =3D problems sending emails anywhere else but here. When he tries to send = =3D me an email, this is the response he gets: -- Your message Subject: "test" has been delayed for some or all of the =3D intended recipients. The recipients that were affected are: =3D sbeairst@xxxxxxx =3D <outbind://46/cgi-bin/compose?curmbox=3D3DF000000001&a=3D3De3370dc078531d= 3388=3D 34c6a17df1e97b&mailto=3D3D1&to=3D3Dsbeairst@xxxxxxx&msg=3D3DMSG1047928416= .99&st=3D art=3D3D10587&len=3D3D1818&src=3D3D&type=3D3Dx> Your message was = received =3D 09:51:58 Mon, 17 March 2003. The mail system will keep trying to deliver = =3D your message for another 67 hours 57 minutes.=3D20 -- =3D20 We've both run out of ideas on this one. We cannot tell if its my =3D system or his (I'm thinking its mine). Coincidently, we both are using = =3D the same ISP (Storm.ca), so we initially suspected some kind of routing = =3D issue but the folks at Storm say everything is OK. We are both running = =3D Exchange 2000. I'm not doing any blocking on the server at all. =3D20 Does anyone have any ideas where else we can look? =3D20 Thanks, =3D20 -- Shawn Beairsto Network Administrator Data Kinetics Ltd. http://www.dkl.com <http://www.dkl.com/>=3D20 =3D20 =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D= 3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D Use the below link for Archives, and to set your preferences. http://thethin.net/exchangelist.cfm =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Use the below link for Archives, and to set your preferences. http://thethin.net/exchangelist.cfm ===================== Use the below link for Archives, and to set your preferences. http://thethin.net/exchangelist.cfm