NuPoint Voicemail to O365 email stopping

[STISD]

I've been running NuPoint with voicemail to email on Office365 for a couple years. Lately, the service has failed a few times. I've been able to find the problem most of the time, but recently, I couldn't find the reason.
I restarted the Advanced UM service, and that let it start sending out old voicemails to email again, but as I was looking for the issue, I noticed a set of logs that concern me.

Looking in the nupointdb/current (as well as several older files) shows these entries coming up every 1/10th of a second:

2020-10-15 07:36:54.142347500 LOG:  could not receive data from client: Connection reset by peer
2020-10-15 07:36:54.142387500 LOG:  unexpected EOF within message length word
2020-10-15 07:36:55.143882500 LOG:  could not receive data from client: Connection reset by peer
2020-10-15 07:36:55.143911500 LOG:  unexpected EOF within message length word

Any idea if this is causing problems or if there's a config error?

[lundah]

That's a new one to me. I had several customers have issues after last week's O365 (or maybe we should start calling it Office 360-ish?) outage, but all were fine after restarting Advanced UM. Maybe try putting in deliberately bad credentials, restart Advanced UM, then correct it, and see if anything changes?

[STISD]

No change.

[PC77375]

We had a recent issue, after their outage, where the username format of our super user changed. I corrected it and all started working again.


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[sunspark]

check this

[STISD]

The setting was letting Nupoint decide the from address, so I changed it, but there was no change in the log.