After migrating to a dedicated environment a short while ago our email for customer's orders are being blocked by various email managers. Blocked and reblocked by at&t and the latest is:
"Final-Recipient: rfc822; [email protected]
Original-Recipient: rfc822;[email protected]
Action: failed
Status: 5.0.0
Remote-MTA: dns; ternespkg.com.inbound10.mxlogic.net
Diagnostic-Code: smtp; 554 Denied [CS]
[ee390185.0.14374295.00-1696.25598621.s12p02m097.mxlogic.net] (Mode:
normal)"

Support has been working on this for several weeks now but we still have ongoing issues as shown above.
I believe it has to do with the Miva mail server we have been assigned by Miva:
mail system at host deda271.mivamerchant.net.

Has anyone else experienced this and found a solution?

Thanks, Larry