We cannot send emails to a particular domain that belongs to one of our suppliers. I have checked on the Exchange logs and the emails are being delivered by SMTP to c2beomr10.btconnect.com but I cannot trace any further than that. Read receipts show -
"The original message was received at Mon, 16 Feb 2009 10:07:33 GMT from host xx-xxx-xx-xxx.in-addr.btopenworld.com [xx.xxx.xx.xxx]
----- The following addresses had successful delivery notifications ----- <firstname.lastname@example.org> (relayed to non-DSN-aware mailer)"
The supplier is not receiving mails.
Is there any way of tracing the path and finding our where the email is stopping?