Update: I just received a voicemail email now, and another person received theirs too, but it's from a week ago.

Can this help?
This is an automated status message

Delivery failed to these recipients:

******************

Delivery failures can be the result of:

- User's mailbox quota being exceeded
- Invalid Username at a valid domain
- No connectivity to destination domain
- Improper DNS setup for destination
- Remote mail server temporarily not available

Regards,
The Postmaster server at:
allworx.inscitek.com