Are any of you seeing issues with using the groups here at d.o?
(I know it's annoying to log in.)
We also have reports that people are not notified of new discussions and events or of comments.
It may be that umass.edu is blocking emails.
We can look into that.
Please post your experience in the comments below, so we can follow up.
Please indicate the domain of your email address, in case that's an issue.