We have one of our business partners who cannot send mail to my domain, though we can normally get mail to them. Their domain uses Merak Mail, I'm on Exch2K. Each of us have no known problems with any other domain except each other. Using www.checkdns.org, both domains' MX records appear to be configured correctly. The other domain, geostarcorp.com, was using ESMTP, but he indicates he has tried disabling that and forcing SMTP, that didn't seem to change anything. After the initial DNS querying, here's the last part of the conversation between the servers (my server is 208.187.29.85):
***** 208.187.29.85 [00000390] Fri, 07 Jun 2002 15:29:15 -0400 Client session >>> EHLO mail2.geostarcorp.com 208.187.29.85 [00000390] Fri, 07 Jun 2002 15:29:15 -0400 Client session <<< 250 OK 208.187.29.85 [00000390] Fri, 07 Jun 2002 15:29:15 -0400 Client session >>> MAIL From:<[EMAIL PROTECTED]> SIZE=7596 208.187.29.85 [00000390] Fri, 07 Jun 2002 15:29:15 -0400 Client session <<< 250 2.1.0 [EMAIL PROTECTED] OK 208.187.29.85 [00000390] Fri, 07 Jun 2002 15:29:15 -0400 Client session >>> RCPT To:<[EMAIL PROTECTED]> 208.187.29.85 [00000390] Fri, 07 Jun 2002 15:29:15 -0400 Client session <<< 250 2.1.5 [EMAIL PROTECTED] 208.187.29.85 [00000390] Fri, 07 Jun 2002 15:29:15 -0400 Client session >>> BDAT 7596 LAST ***** I've looked at some Technet articles but am still not clear on what the BDAT response means, and also no idea why it's ruining my mail... I'm not running a SMTP Connector, only 1 Exchange server in the site, not running SSL, no unusual occurrences with any other known domain. This morning, the sysadmin of geostarcorp.com said he was unable even to telnet into my mail server. So I'm inclined to think the problem is on his end but can't verify it yet. Thanks for any help... David _________________________________________________________________ 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]
