This has been a known thing on our end for some time.

This will essentially only impact those who use Microsoft online services, primarily Office 365, but we will need to update our migration tools by the time this takes effect.

The bigger concern, Microsoft is showing their hand for the future and it’s not the Microsoft we are all used to working with.

It started with delays to Exchange on-prem, talk about changing Exchange on-prem to subscription pricing (which they've backtracked on for now), their acquisition of Accompli and how communication is starting to move through Microsoft servers (e.g., "verifying" clicked links in Teams and Outlook). It culminates with a closed system where everything goes through their servers when using desktop or mobile Outlook’s, regardless of where you are hosting your email.

That said, not much will change on our end and EWS will still be supported in perpetuity.

But, in the very near future, we will be announcing methods for email users to enhance the reliability, security, and functionality not only to SmarterMail but clients you want to use with SmarterMail.

All these changes at Microsoft and Google, trying to prevent customers from accessing their data and in some ways making it extremely difficult to move from their services, make being in the mail server business a very good thing moving forward. We're actually looking forward to the implications of the decisions they're making. 

Derek,

Thanks for the response, I just posted and deleted the same article.

Doesn't sound like EWS is going to be supported forever however, I would say 3 years for their estimate, but it might hit snags for MS to implement to O365, and probably another 3-5 years for them to expire Exchange APIs in Desktop/Cloud Outlook.  Have you guys started looking at GraphAPI, and is it even able to be licensed?

Obviously, this really isn't something to do with you guys as developers, but more with integrating with Microsoft products which is a "blackbox" that hopefully they are willing to give more information to if you sign a bunch of NDAs, so I'm not hoping for much.  Seriously, if you could even give a thumbs up or down, it's probably irrelevant from a purchasing decision, but that, at least you know of what's going on and working on it is good news to me.

@Derek Curtis

See Andrew's post in this topic as well, for more things we're exploring... 

https://portal.smartertools.com/community/a98200/microsoft-full-break-with-legacy-email.aspx#post155846

Yes, IMHO this is the right direction -- JMAP. The Cloud push by M$ is the fork in the road over sovereign computing. Its clear M$ really wants a future without end user computing sovereigty. M$ has been trying to kill off RDP and Exchange for quite some time now.

I've been thru multiple passes of "embrace and extend" across various technologies including, but not limited to, Netware, AppleTalk, IBM SNA and now Azure IBM 3270 connectors. But I was on the other side back then. M$ is patient and is willing to wait out the users and vendors for 10 years -- what ever it takes.

I lived the SmarterMail history like everyone else here which was centered on an open "Outlook Classic" and Exchange on-prem. So many wonderful things were developed on top of those open platforms including multiple CRMs. eM Client could add some kind of open programming, like Outlook Classic has, to really challenge M$. I hate to say this but SmarterMail without M$ is coming because M365 is coming for ALL your eMail!

I just don't understand why M$ does not make Windows a WSL for Linux. M$ has converted most of Azure to Linux already -- aka  Microsoft Azure Linux. I was thinking that would have already happened but who am I to decide? I know is radical...