[email protected] emails not working?

[CKFIT]

We haven't received any cloud-based 3CX emails for over an hour. Invitations, voicemails, alerts, etc. all stopped at 11:18am Central time today. I don't recall this ever happening in the past, but this has now happened 2 or 3 times in the past couple weeks. Is there any reason this is happening more frequently now?

It doesn't appear to be on our end, as our o365 message traces don't indicate any quarantine/forwarding issues.

 

[Nathan@Voxtelesys]

I just tested three geographically unique systems, all with positive results. When you test the "3CX SMTP server" from the management console do you get an error?

 

[CKFIT]

I get an identical "Mail Sent" just like your screenshot.

 

[CKFIT]

The issue appears to have resolved itself after just over an hour of being down.

 

[CKFIT]

Since I don't this this was an issue on our end, can anyone else verify that they were not having the same problems at the same time?
Like I said, this is happening more often nowadays and our mail system DID NOT go down during this time, as it's an 0365 environment with over 200 users.
The only thing that wasn't working at the time was email from 3CX.