We keep getting the following message when trying to send to certain domains:
Delivery has failed to these recipients or distribution lists:
An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
The following organization rejected your message: mail160-tx2.bigfish.com.
I checked with our guy that takes care of the stuff on the web site end and he says he setup our DNS settings correctly (Has a MX record and rDNS pointing to our mail server). I even tried deleting and recreating the send connector, but stll no luck. What else could be causing this issue?
Thanks in advance.