I don't know how best to troubleshoot this. Also, if there is a work around I would like to employ it while this issue is being resolved. This is an issue brought to me by my CEO soooooo......
Here is the undelivered text;
This is the mail system at host myDomain.com.
I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can delete your own text from the attached returned message.
The mail system
<carol@domainName.com>: host domainName.com.inbound10.mxlogicmx.net[xxx.xx.xxx.x]
said: 554 Denied (Mode: normal) (in reply to end of DATA command)