Aaah. But, he has already stated that he has verified the IP with the other company.
David, did you check what Tom M. asked you? S. -----Original Message----- From: ExchAdmin [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 01, 2001 11:50 AM To: Exchange Discussions Subject: RE: Internet mail problem We had this same problem. The problem was, we use our ISP's DNS servers. The company we were trying to send mail to, had just changed their internet access from our ISP to a different one. Their mail server's IP changed and our ISP hadn't changed their MX record to point to the right IP. So the bottom line is, call your ISP, or whoever is in charge of your DNS, and tell them to look at their MX records. Aaron -----Original Message----- From: Cook, David A. [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 01, 2001 8:09 AM To: Exchange Discussions Subject: RE: Internet mail problem I'm not getting an NDR yet as the gateway will continue trying for 48 hours before sending an NDR. The only thing the gateway says is "Failed to connect" The nslookup was done from the Exchange server and the administrator from the other domain confirmed that I have the correct IP address of their mail server. -----Original Message----- From: Mike Putley [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 01, 2001 10:07 AM To: Exchange Discussions Subject: RE: Internet mail problem What is the error on the NDR? Did you make sure your NSLookup was done in the same context as your exchange server? Mike -----Original Message----- From: Cook, David A. [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 01, 2001 8:59 AM To: Exchange Discussions Subject: Internet mail problem Hello all, My issue is with sending mail to a specific domain (aboc.com) from my domain. I can receive from this domain but when I try to send or reply my mail gateway reports that it failed to connect. The troubleshooting I have done is: 1. Use nslookup to get MX record information 2. ping ip address and it succeeds. 3. Telnet to port 25 of the IP address and connection fails. 4. Telnet to port 25 of the IP from a machine external to my domain (home computer) and is succeeds. This lead me to believe that my domain was being blocked. I have spoke with an administrator at the other domain and I'm told they are not blocking me. What else should I look at? Dave Cook Exchange Administrator Kutak Rock, LLP 402-231-8352 [EMAIL PROTECTED] ###################################################################### The information contained in this electronic mail transmission (including any accompanying attachments) is intended solely for its authorized recipient(s), and may be confidential and/or legally privileged. 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