Is Your On-Premise Exchange Server Ready for March 22nd 2026?

If you run an on-premises Exchange Server or any Windows-based SMTP relay that sends mail to or receives mail from Exchange Online, then you might have a hard deadline coming up: March 22, 2026. Miss it, and you can risk breaking your mail flow, if the Root Certificates used by Exchange is not updated. What … Read more

Cloud‑managed Remote Mailboxes: Manage Exchange attributes in Exchange Online (and finally retire the last Exchange server)

TL;DR: Microsoft shipped a new per‑mailbox capability that transfers the Source of Authority (SOA) for Exchange attributes to the cloud. Flip a switch (IsExchangeCloudManaged) and you can manage aliases, GAL visibility, custom/extension attributes, and many mailbox flags directly in Exchange Online for directory‑synced users, without keeping an on‑prem Exchange server (or EMT VM) just for … Read more

Exchange Security Updates – October 2023

It has been Patch Tuesday again and Microsoft has released a new set of important Exchange Security Updates, released together with this month’s Microsoft Updates. It is important to keep Your Exchange Servers up-to-date, see the blog post from the Exchange Team on this: Protect Your Exchange Servers The latest Exchange Security Updates address vulnerabilities … Read more

Exchange Security Updates – August 2023

It has been Patch Tuesday again and Microsoft has released a new set of important Exchange Security Updates, released together with this month’s Microsoft Updates. It is important to keep Your Exchange Servers up-to-date, see the blog post from the Exchange Team on this: Protect Your Exchange Servers The latest Exchange Security Updates address vulnerabilities … Read more

Exchange Security Updates – June 2023

It is Patch Tuesday again and Microsoft has released a new set of important Exchange Security Updates, released together with this month’s Microsoft Updates. It is important to keep Your Exchange Servers up-to-date, see the blog post from the Exchange Team on this: Protect Your Exchange Servers The latest Exchange Security Updates address vulnerabilities found … Read more