exchange online

Microsoft has set hard dates: Exchange Web Services (EWS) in Exchange Online will be disabled by default starting October 1, 2026, and will be permanently and irrevocably shut down on April 1, 2027 — leaving organizations no choice but to migrate active EWS integrations to Microsoft Graph (or...

Microsoft has given administrators a hard, non-negotiable runway: beginning October 1, 2026, Exchange Web Services (EWS) will be disabled by default in Exchange Online tenants, and the platform will be completely and permanently shut down on April 1, 2027. That phased shutdown—combined with new...

Exchange Web Services in Exchange Online is being retired, and the clock is now unmistakably ticking: Microsoft will begin tenant-by-tenant disablement starting October 1, 2026, with a final, irreversible shutdown of EWS in Exchange Online in 2027. This move completes a deprecation that began...

Microsoft is rolling out a pair of practical updates to Exchange Online moderation that should make life easier for moderators and admins alike: moderated messages will now use Actionable Messages adaptive cards so Approve | Reject controls appear inside the message body on every Outlook client...

Microsoft is urging organizations that send or receive mail with Exchange Online to make sure the DigiCert Global Root G2 root certificate (and its subordinate CAs) is trusted on any systems that perform full certificate-chain validation — failure to do so may interrupt mail flow and TLS-based...

Microsoft has pushed more runway to organizations still using legacy SMTP AUTH with Basic Authentication in Exchange Online, replacing an earlier hard deadline with a clearer, staged timeline that gives admins more time to inventory, remediate, and migrate—but it also tightens defaults going...

Microsoft has opened public preview of Message Trace support in Microsoft Graph, marking a significant step toward modernizing how organizations collect, query, and automate email trace data from Exchange Online. The preview shifts message tracing from the legacy Reporting Webservice to a...

Microsoft has begun enforcing tighter email access controls that will block Exchange Online sign‑ins from mobile clients and devices that aren’t prepared for the change — a move IT departments must treat as an operational deadline if they want to avoid sudden user outages and helpdesk chaos...

Exchange Online mailbox quotas are straightforward in concept but layered in practice — and the difference between a 30 GB limit and a 1.5 TB “auto‑expanding” archive can be the difference between a smooth migration and a frustrated user locked out of email. m]) Background / Overview Exchange...

Microsoft's Exchange engineering team has made a clear — and important — clarification for Exchange Online administrators: using New-MoveRequest to force local mailbox moves inside the same tenant or datacenter is not supported and is actively discouraged. While the cmdlet still exists and can...

Microsoft quietly backed away from a planned per‑mailbox external recipient cap for Exchange Online after sustained customer pushback, saying the proposed Mailbox External Recipient Rate Limit (often described as a 2,000‑external‑recipients per mailbox in a 24‑hour sliding window policy) will...

Microsoft has quietly abandoned the planned per‑mailbox Mailbox External Recipient Rate Limit (commonly discussed as the 2,000‑recipient ERR/MERRL cap) after customers warned the rule would break legitimate workflows and integrations, and the Exchange team says it will pursue smarter, more...

Microsoft’s Exchange team has announced — through a brief posting that has circulated among administrators — that the planned Mailbox External Recipient Rate Limit (MERRL, also called the Mailbox External Recipient Rate) is being canceled “indefinitely” after customer feedback, and that Exchange...

Starting March 1, 2026, Exchange Online will refuse connections from mobile devices that speak an Exchange ActiveSync (EAS) protocol older than EAS 16.1, a change announced by the Exchange Team that impacts native mail clients on phones and tablets and gives organizations a clear deadline to...

Retention support for inactive mailboxes is now available in Public Cloud, and administrators have a new, consolidated PowerShell option—Set-Mailbox -ExcludeFromAllHolds—to remove most retention holds from inactive mailboxes in a single operation while preserving legal and restrictive holds...

Microsoft's Exchange Team announced an immediate policy change that will start blocking Exchange Web Services (EWS) access for mailboxes licensed only with frontline/Kiosk plans beginning March 1, 2026, and reiterated the broader EWS retirement timetable that culminates with Exchange Online...

Microsoft’s recent clarifications around Direct Send and the related protection options in Exchange Online change the way administrators should think about mail routing, tenant exposure, and the controls available to prevent spoofing and unwanted anonymous mail that appears to originate from...

FlexNetworks has doubled its capacity into the MICE Internet Exchange (MICE), a strategic upgrade the Saskatoon‑based fibre operator says will give Central Canadian businesses and residents a more direct, lower‑latency on‑ramp to major cloud and content platforms including Microsoft Azure...

Microsoft has acknowledged and begun to address a disruptive bug that in some instances prevents the classic Outlook for Windows from launching — an error that leaves affected Microsoft 365 users locked out of the desktop client — but its official guidance still lists Outlook Web Access (OWA)...

Cloud‑managed remote mailboxes are now being promoted from preview into production-ready use, delivering the long‑promised ability to manage Exchange‑specific attributes for directory‑synced mailboxes directly in the cloud and removing one of the most common reasons organizations kept a “last...