There appears to be something wrong with the method used to send email notifications from this community.
No matter how many times I go into GMAIL spam and mark these messages as not spam, they continue to be filtered and I keep losing notifications of replies to the threads I subscribe to here.
Looks like you are not sending these emails from valid subdomains according to whatever Microsoft.com has in their DNS, SPF, DKIM or whatever else is not correct.
I don't have this issue with notifications from social.technet.microsoft.com notifications sent from "firstname.lastname@example.org"
However, for this community, the notifications are busted for GMAIL.
The reply address and domain for email@example.com fails verification
The warning says:
Gmail could not verify that it actually came from mstechcommunity.microsoft.com. Avoid clicking links, downloading attachments, or replying with personal information.