Michel de Rooij

PSA: In 1 week, Exchange Online requires trusting DigiCert Root G2 CA chain to avoid disruption https://xf.ms/DigiCertRootG2

PSA: Today, EXO will block native email apps using EAS<16.1 https://xf.ms/PreEAS61Block

PSA: Tomorrow, EXO will block native email apps using EAS<16.1 https://xf.ms/PreEAS61Block

PSA: In 1 week, EXO will block native email apps using EAS<16.1 https://xf.ms/PreEAS61Block

PSA: In 1 month, Exchange Online requires trusting DigiCert Root G2 CA chain to avoid disruption https://xf.ms/DigiCertRootG2

Just vibe-updated PIMfox, the PIM activator for Firefox extension to v1.1.0, with support for PIM Groups
github.com/michelderooi...
#Entra

February 2026 Update for Office 365 for IT Pros The February 2026 (update #128) files for the Office 365 for IT Pros (2026 edition) eBook are available for subscribers to download from Gumroad.com.

The February 2026 (monthly update #128) EPUB and PDF files for the #Office365 for IT Pros eBook are now available for current subscribers to download. All the #Microsoft365 news that's fit to print...
office365itpros.com/2026/02/02/o...

PIMfox for Entra – Get this Extension for 🦊 Firefox (en-US) Download PIMfox for Entra for Firefox. A Firefox extension that allows you to activate multiple PIM (Privileged Identity Management) roles simultaneously in Microsoft Entra and Azure resources.

So, I vibe coded this thing for Entra & Azure administrators too attached to using Firefox
addons.mozilla.org/en-US/firefo... #EntraID #Security #Firefox

Exchange Online ActiveSync Device Support Update | Microsoft Community Hub We want to inform our users and organizations about an important upcoming change regarding Exchange ActiveSync (EAS) device connectivity to Exchange...

PSA: In 1 month, EXO will block native email apps using EAS<16.1 xf.ms/PreEAS61Block

Updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline | Microsoft Community Hub We wanted to provide the updated Exchange Online SMTP AUTH Basic Authentication Deprecation Timeline. &nbsp;

ICYMI: Timeline for SMTP AUTH w/Basic Authentication retirement updated:
✅ End of Dec2026: Disabled existing tenants, w/option to enable.
✅ Jan2027: Unavailable for new tenants.
✅ Mid2027: Final EOL date announcement
See techcommunity.microsoft.com/blog/exchang...

France is having a go at something other countries tried before: build a sovereign alternative to Teams. 2027 seems optimistic, but let's see. Likely default will be to be unavailable during non-working hours, and a sneak peek at the new status option www.euronews.com/next/2026/01... #MSTeams

January 2026 Update for Office 365 for IT Pros Monthly Update #127 for the Office 365 for IT Pros eBook (2026 edition) is now available for current subscribers to download from Gumroad.com.

Happy New Year to all. We've just released monthly update #127 for the #Office365 for IT Pros eBook. Current subscribers can download the new EPUB and PDF files now. Have fun and success with #Microsoft365 in 2026!
office365itpros.com/2026/01/01/o...

PSA: In 3 months, Exchange Online starts rollout of enforcing Mailbox External Recipient Rate Limit https://xf.ms/EXOERR

PSA: In 1 year, Office Online Server will retire https://xf.ms/OOSretirement

PSA: In 6 months, EWS block enforced for EXO mailboxes with Kiosk/Frontline SKUs https://xf.ms/NoEWSEnforced

PSA: In 6 months, EWS block enforced for EXO mailboxes with Kiosk/Frontline SKUs https://xf.ms/NoEWSEnforced

Update to EWS Access for Kiosk / Frontline Worker Licensed Users | Microsoft Community Hub We wanted to provide an update on EWS access for Kiosk / Frontline Worker licensed users. &nbsp;

PSA: EWS block enforcement for Kiosk/Frontline SKUs has been moved back to the end of June xf.ms/NoEWSEnforced #MSExchange #Microsoft365

PSA: Today, EXO Set/Get-Contact will be deprecated for Contact mgt https://xf.ms/EXOContactUpd

Wording could be better, thanks.

PSA: Tomorrow, Exchange Online Set/Get-Contact will be deprecated https://xf.ms/EXOContactUpd

GitHub - michelderooij/Get-EventSession: Script to assist in downloading Microsoft event contents or return session information. Script to assist in downloading Microsoft event contents or return session information. - michelderooij/Get-EventSession

Also got a huge collection of event videos or slidedecks? Want to lower its footprint? I published 2 scripts to help with that by compressing and downscaling videos or media, now part of my Get-EventSession repo github.com/michelderooi... #PowerShell

PSA: In 1 week, Exchange Online Set/Get-Contact will be deprecated https://xf.ms/EXOContactUpd

Planning on certifying over the holidays? Humble Bundle might have interesting offer (if you don't mind reading from PDF) - Exam Prep bundle including AI900, AZ900, AZ104, AZ500, SC100 a.o.
www.humblebundle.com/books/micros...

Heads-up: EWS blockage for Exchange Online mailboxes with Kiosk/F1/F3 license, which officially do not offer EWS access, will be enforced March 2026 xf.ms/NoEWSEnforced #MSExchange

PSA: In 3 months, Exchange Online starts retiring SMTP AUTH w/BasicAuth https://xf.ms/SmtpAuthRetire

Office 365 for IT Pros (2026 Edition). The Ultimate Guide to Managing Microsoft 365. (Includes the Automating Microsoft 365 with PowerShell eBook) The Ultimate Guide to Planning, Deploying, and Managing the Microsoft 365 Cloud Productivity EcosystemWhy buy separate books to learn about Microsoft 365, SharePoint Online, Exchange Online, OneDrive ...

Here's the Black Friday discount code to get 50% off the Office 365 for IT Pros eBook (including the Automating #Microsoft365 with #PowerShell eBook). Code terminates on Tuesday. If you're running a Microsoft 365 tenant, you need this book: o365itpros.gumroad.com/l/O365IT/Bla...

Announcing Public Preview: Exchange Online Admin API | Microsoft Community Hub We are announcing the Public Preview of the Exchange Online Admin API. &nbsp;

PSA: Exchange Online Admin API (EWS replacement subset) now available (preview). REST-like alternative for some EWS scenarios, but not full REST replacement; cmdlets still recommended for full functionality techcommunity.microsoft.com/blog/exchang... #MSExchange #EWS

.. what does it mean? 🤔

PSA: Today, Exchange Online auto-archving will be enabled for targeted release tenants https://xf.ms/EXOAutoArch

PSA: In 1 month, Exchange Online Set/Get-Contact will be deprecated https://xf.ms/EXOContactUpd