mail4 issues

I saw the post earlier about mail4 being down:
Mail4 and Live Chat are down - Network Outages and Updates - JodoHost Web Hosting Community

And post says it is now up.

Customer can receive emails now, but if he sends them out they don’t seem to be going out. Is there a backlog on the smtp portion sending out emails?

The issue had been resolved after few minutes of server downtime. Please let us know if you are still facing any issue.