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

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...

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

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

PSA: In 1 week, Exchange Online auto-archving will be enabled for targeted release tenants https://xf.ms/EXOAutoArch

PSA: Today, Exchange Hybrid requires dedicated Hybrid App for cross-prem feats https://xf.ms/HybridAppReq

PSA: Tomorrow, Exchange Hybrid requires dedicated Hybrid App for cross-prem feats https://xf.ms/HybridAppReq

PSA: Today, Nested app auth & legacy EXO tokens start getting turned off https://xf.ms/NAAoff

PSA: Tomorrow, Nested app auth & legacy EXO tokens start getting turned off https://xf.ms/NAAoff

PSA: In 1 week, Exchange Hybrid requires dedicated Hybrid App for cross-prem feats https://xf.ms/HybridAppReq

PSA: In 1 week, Nested app auth & legacy EXO tokens start getting turned off https://xf.ms/NAAoff

PSA: Today, Exchange Online will start throttling MOERA domains https://bit.ly/MoeraThrottling

PSA: Today, AzureAD & AzureAD Preview modules retire https://bit.ly/AADModuleRetire

PSA: Tomorrow, Exchange Online will start throttling MOERA domains https://bit.ly/MoeraThrottling

PSA: Tomorrow, AzureAD & AzureAD Preview modules retire https://bit.ly/AADModuleRetire

PSA: Today, Exchange 2019 & 2016 reach End-of-Life https://bit.ly/ETOEx20162019EOL

PSA: Tomorrow, Exchange 2019 & 2016 reach End-of-Life https://bit.ly/ETOEx20162019EOL

Hybrid Exchange issues with Free/Busy? It's planned nudge day 3 of 3. Test-OAuthConnectivity likely shows 403 error, eg running (mix with) Exchange with pre-April patch levels. Affected? Act soon, permanent after EoM! bit.ly/ETOSecChanges #MSExchange

PSA: In 1 week, AzureAD & AzureAD Preview modules retire https://bit.ly/AADModuleRetire

PSA: In 1 week, Exchange Online will start throttling MOERA domains https://bit.ly/MoeraThrottling

PSA: In 1 week, Exchange 2019 & 2016 reaches End-of-Life https://bit.ly/ETOEx20162019EOL

PSA: In 1 year, Exchange Hybrid needs Hybrid app w/GraphAPI perms & EXO retires EWS https://bit.ly/ETOEWSRetireEXO

PSA: In 6 months, Exchange Online starts phased rollout of enforcing Mailbox External Recipient Rate Limit https://bit.ly/ETOEXOERR

PSA: In 1 year, Exchange Hybrid needs Hybrid app w/GraphAPI perms & EXO retires EWS https://bit.ly/ETOEWSRetireEXO

PSA: In 1 month, Exchange Hybrid requires dedicated Hybrid App for cross-prem functionality https://bit.ly/ETOSecChanges

PSA: Today, legacy EXO tokens start getting turned off https://aka.ms/NAAFAQ

PSA: Tomorrow, legacy EXO tokens start getting turned off https://aka.ms/NAAFAQ

PSA: In 1 week, legacy EXO tokens start getting turned off https://aka.ms/NAAFAQ

PSA: In 1 month, Exchange Online will start throttling MOERA domains https://bit.ly/MoeraThrottling

PSA: In 1 month, AzureAD & AzureAD Preview modules retire https://bit.ly/AADModuleRetire

PSA: In 1 month, Exchange 2019 & 2016 reaches End-of-Life https://bit.ly/ETOEx20162019EOL

⚠️ Running Exchange Hybrid with mailboxes on-prem & EXO, run pre-Apr2025 HU builds and not configure dedicated hybrid app? Scheduled disruptions Sep16 7am-Sep18 7am in GMT. Symptoms: broken F/B, MailTips or profile pic. Info at techcommunity.microsoft.com/blog/exchang... #MSExchange

PSA: Hotfixes arrived for Exchange 2016-SE to fix a cross-prem issue for the Move to Archive retention tag using dedicated Hybrid app eightwone.com/2025/09/08/h... #MSExchange

PSA: In 6 months, Exchange Online starts retiring SMTP AUTH https://bit.ly/ETOSMTPAuthRetireEXO

PSA: Today, Exchange Online deprecates old message trace UI & cmdlets for WW https://bit.ly/EXOMessageTraceV2

PSA: Today, Exchange Online starts retiring Client Access Rules https://bit.ly/ETOCARDeprecation

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PSA: Tomorrow, Exchange Online starts retiring Client Access Rules https://bit.ly/ETOCARDeprecation

PSA: Tomorrow, Exchange Online deprecates old message trace UI & cmdlets for WW https://bit.ly/EXOMessageTraceV2

PSA: In 3 days, Exchange Online deprecates old message trace UI & cmdlets for WW https://bit.ly/EXOMessageTraceV2

PSA: In 3 days, Exchange Online starts retiring Client Access Rules https://bit.ly/ETOCARDeprecation

PSA: In 1 week, Exchange Online deprecates old message trace UI & cmdlets for WW https://bit.ly/EXOMessageTraceV2

PSA: In 1 week, Exchange Online starts retiring Client Access Rules https://bit.ly/ETOCARDeprecation

PSA: Connect-Office365Services 3.50 with module (un)install function, Select-Office365Modules github.com/michelderooi... #PowerShell #Office365

In addition to Group SOA Preview, Remote Mailbox SOA Preview also arrived today techcommunity.microsoft.com/blog/exchang... #MSExchange #Hybrid #LES

PSA: In 2 weeks, Exchange Online deprecates old message trace UI & cmdlets for WW https://bit.ly/EXOMessageTraceV2