Opinion

Microsoft’s Tenant to Tenant Migration Vision Lacks Coverage and Depth

by Tony Redmond

Image 1 Expand Those who listened to Microsoft’s virtual Ignite session on Supporting Mergers, Acquisitions, and Divestitures in Microsoft 365 might have concluded that Office 365 tenant restructuring was about to become possible. It’s not. What’s really happening is that Microsoft is taking on the easiest parts of tenant to tenant migrations: cross-tenant mailbox migration (now… Read More

Anticipating Microsoft Ignite 2020

by Tony Redmond

Welcome to 48 Hours of Free Technical Content The annual Microsoft Ignite conference for IT Professionals was originally planned to run in New Orleans starting today. Due to the Covid-19 pandemic, Microsoft decided not to run in-person events through June 2021, and consequently Ignite 2020 is now a 48-hour online event run over three days… Read More

What’s the Real Size of Exchange Online Mailboxes?

with 1 Comment by Tony Redmond

The Office 365 Substrate uses Exchange Online mailboxes to store a lot of data that users never see. The data is used by the substrate for different purposes, mostly to make it easier for features to get to relevant information. Microsoft doesn't document exactly what is stored, where it is stored, and how it is used, so we must poke around in the innards of mailboxes to see what we can discover.