hi, i have exchange 2000 server. until last month everything was working correctly. after that mails to hotmails are not being sent. it gives error: "message undeliverable.contact admnistrator" now this happen to onother mail id also. for other mail id's it gives no problem. can anyone help me in this ?

when you get this bounce back message indicating "messages undeliverable" there is more detail. please provide the entire message.

hi, here is the full messsage that is recieved when mail is sent to any hotmail id's & some particular domain based id's. Your message did not reach some or all of the intended recipients. Subject: test Sent: 5/10/2007 9:34 AM The following recipient(s) could not be reached: faisalmone@hotmail.com on 5/10/2007 9:34 AM The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator. <Server.habshan #5.0.0> bye,