Hi BFisher1,
I see that you received a Non Delivery Report (NDR) after email sending failure. If so, please send the NDR to me via private message for further research.To request the NDR information, I’ve sent a private message to you.
To see the private message:
1. Please go to "Your details" section on the right side of the community site.
2. Click Private messages.
3. Click the subject title of the response to read the message
In addition, please also follow Kent's suggestion to check whether there are any issues to receive emails from others’ email addresses.
Thanks,
Aaron Yuan