We are excited to announce the general availability of Exchange Server Subscription Edition (SE). This release continues Microsoft’s long tradition of enabling customers to provide enterprise email s...
Updated Aug 06, 2025
Version 5.0
Blog Post
It's great to hear that customers have until 2035 to get onto Exchange Online and off Exchange Server SE. I hope we don't have too many pushing that deadline, really.
Is there any plan to align the end dates of Exchange Server SE and classic Outlook? Last I heard, we could get classic Outlook by some means through 2029. New Outlook treats Exchange Server SE as a generic IMAP server, so a lot of Exchange Server SE features are going to effectively disappear for Windows client in 2029, if classic Outlook disappears then.
On the other hand, by then all our mail will probably be picked up and discarded by our personal agents, so Exchange Server SE's user interface might be irrelevant 😊
Rob
Or to Linux. Some people don't want to have their mailboxes in the cloud. It's great that Microsoft is maintaining that choice now after seemingly coming very close to trying to force customers to Exchange Online. Hopefully, in 2 years, the commitment increases to 2037, then 2039, etc. This "on-premise drops dead Oct 14 2025" thing was very unsettling. Hopefully, that plan is permanently cancelled and not just postponed.