How can I keep Outlook Classic usable with an 80GB Microsoft 365 mailbox?
I'm troubleshooting a Microsoft 365 user whose 100GB mailbox is already about 80GB full. Outlook Classic reaches the practical 40–50GB OST limit when cached mode is set to…
mailbox management
How to Immediately Remove a User's Access to Their Mailbox?
I'm looking for the quickest way to cut a user's access to their Exchange Online mailbox without waiting for sessions to end or expire. Previously, in our old…
How Are You Managing F1 Licenses in Your Organization?
I'm curious about how others are handling M365 F1 licenses, particularly the challenges that come with them. We have around 20,000 users on F1 licenses, but we've turned…
Can I Transfer an Exchange Mailbox to a New Active Directory User through ECP?
Hey everyone, I have a bit of a situation with our on-prem Exchange setup. We've got an AD user (DOMAINexample) whose account has somehow gotten corrupted, so we…
How to Handle Delegated Mailboxes When Migrating to Office 365?
We're in the process of migrating our email services from G Suite to Office 365, and I need some advice on handling delegated mailboxes. In G Suite, users…