Perhaps they're trying to do a reverse lookup on your mail server's DNS record, and it's not in your tables?
> -----Original Message----- > From: Cook, David A. [mailto:[EMAIL PROTECTED]] > Posted At: Thursday, November 01, 2001 09:59 AM > Posted To: MSExchange Mailing List > Conversation: Internet mail problem > 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] _________________________________________________________________ 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]
