Forum Discussion
Outlook 365 Distribution Groups no longer showing new email.
I have four users in my organization that are experiencing distribution groups displaying x amount of new emails counter, but no new emails are visible. Each user is experiencing this with a completely different distribution group.
- Turned off cache mode and turned it back on. (This brought in the newest group emails, but it once again stopped displaying newer ones)
- Renamed the .ost file and let it rebuild another. (This brought in the newest group emails, but it once again stopped displaying newer ones)
- Made a new Outlook user profile. (This brought in the newest group emails, but it once again stopped displaying newer ones)
- Using Outlook on the web does show new group emails.
- Un-joined and rejoined users to their respective distribution groups. (This brought in the newest group emails, but it once again stopped displaying newer ones)
8 Replies
- We spoke to a Microsoft Tech and he guided us to an Admin setting that needed turned on. Group emails for all employees are coming in properly now.
Admin Center > Settings > Org Settings > Modern authentication > Check (Turn on modern authentication for Outlook 2013 for Windows and later (recommended))- This worked perfectly
- I am having a similar issue. 2 weeks ago I could no longer see the incoming emails to my Microsoft Groups. I can access them on OWA but not through the desktop app. Administrator indicated that nothing had changed on his end. He tried deleting and re-adding me to the group, but still have the same problem.
- How big is the local profile? Most likely you will have to reduce the amount of emails being cached locally.
- These particular users have quite large profiles. I will reduce the amount of email cache and get back to you on results.
- I checked their OST size and cache allocation and found nothing of too much size. The limit is to keep a cache no more than a year. OST files are less 30GB in size.
