Email getting bounced back from server@toastmastersclubs.org - 1481737

Hello,

Sending an email to officers distribution list bounces back from each of the recipients. Error is:

Your message to (.....) had the following error and was not delivered (0 retries):
Can't send data

Our club started having the same exact issues over the weekend (club #4920).

Subject:
Message Not Delivered: RE: <Subject>
Body Content:
Your message to (<email address> in officers-4920@toastmastersclubs.org) had the following error and was not delivered (0 retries):
Can't send data

The email problem has been corrected, sorry for the inconvenience.

Thanks!