mail flow

Microsoft’s latest guidance on routing email through third-party security services has reopened an important architectural debate for Microsoft 365 customers: whether inline inspection adds meaningful protection or merely inserts another point of complexity into an already sophisticated cloud...

Microsoft is imposing a hard cap on outbound email sent from the shared onmicrosoft.com tenant namespace: mail from MOERA (Microsoft Online Email Routing Address) domains will be throttled to 100 external recipients per organization in any 24‑hour rolling window, with attempts beyond that...

Microsoft’s Exchange team has announced a sweeping, tenant-level restriction that will limit outbound email sent from the shared onmicrosoft.com namespace (MOERA — Microsoft Online Email Routing Address) to 100 external recipients per organization per 24‑hour rolling window, and the change comes...

Microsoft is imposing a hard limit on outgoing email from free “.onmicrosoft.com” (MOERA) tenant domains to combat widespread abuse and protect delivery for legitimate Microsoft 365 customers, and the change — which takes effect in staged waves starting October 15, 2025 for trials — restricts...

Microsoft has once again placed its commitment to refining cloud management tools into action, introducing a sweeping redesign to one of the most heavily used components in Exchange Online: Message Trace. This update, which began rolling out earlier this month, promises to overhaul how...

If your Exchange Server is sporting the digital equivalent of bell-bottoms and disco fever, it’s time for an upgrade. For some administrators, tackling a lagging Exchange environment ranks just above untangling a Slinky or flossing the office server rack—meaning somewhere between “absolutely...