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Updated May 2, 2022 If you are looking for guidance on what is in a message header and how to interpret a message header, check out my article here: https://madmike.net/what-is-an-email-message-header/ This article shows how to read an email message header. With 345 million active users in Office 365, Office 365 & Outlook remain the top […]
What is a Message Header? Reading a message header is a simple and necessary skill for Office 365 & Exchange Admins. These days it is becoming less and less common. However, it certainly is one of those skills that you need when issues pop up. We often had to review message headers with on-prem […]
On October 5, 2021, the Microsoft Exchange Team BLOG posted a notice about Upcoming API Deprecations for EWS in Exchange Online. The article included some API commands becoming end of life. However, the true shock was a statement that on September 30, 2022, no new Application Registrations would be allowed. The key statement was this: […]
I had the wonderful opportunity to speak at a great meetup in Manchester, UK a few days ago. The Microsoft Cloud User Group has some fantastic gatherings coming up, and I highly recommend all my UK friends take advantage of them. They are excellent networking events. In this post, I will review what I covered […]
When it comes to on-prem Exchange migrations to Office 365, I am a broken record. If you can use the Mailbox Replication Service (MRS) to migrate Exchange On-Prem Mailboxes to Exchange Online, you should. MRS migrations allow for a much easier migration with the following benefits: Reuse Outlook Cache Normally, no reconfiguration of Outlook / […]
There have been some major announcements relating to MAD at Ignite this year. These announcements are very exciting! The dates are a bit. . . squishy let’s say? But there is hope for massive improvements in this space. Let’s dive in. Ignite 2017. . . a rant There was a famous session held at Ignite […]
Although solutions exist to migrate mailbox permissions, we have to decide what permissions should move rather than just moving them over. In this post, I will cover the common considerations when deciding what mailbox permissions to migrate in MAD projects. First, let’s review the three kinds of Exchange Mailbox Permissions: Full Mailbox Permissions Assigned by […]
As a Microsoft Exchange Administrator, Bad Items in mailbox migrations have always been a pain. It is upsetting to see a large number of bad items in migrations because no one likes the idea of data loss. As outlined in the document called “Track and Prevent Data Loss”, in January 2020, Microsoft rolled out an […]