email deliverability

Microsoft's consumer email network spent the past several weeks quietly—and for some businesses, catastrophically—refusing mail from otherwise reputable senders, leaving invoices undelivered, two‑factor authentication codes undeliverable, and IT teams scrambling for explanations. The fallout has...

A routine service notification from Microsoft Azure was flagged as spam by Microsoft 365 Security — a small event on the surface that exposes a recurring, high-stakes problem: automated email filters, tuned to fight increasingly sophisticated phishing and spam, can and do misclassify legitimate...

Microsoft is moving to strictly limit outbound email sent from the shared .onmicrosoft.com tenant namespace — commonly called MOERA (Microsoft Online Email Routing Address) — introducing a hard cap that will throttle messages sent from onmicrosoft.com addresses to 100 external recipients per...

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 has given a clear ultimatum to organizations still using the shared .onmicrosoft.com sending address: migrate to a verified custom domain or expect severe outbound throttling that will constrain external email to just 100 external recipients per organization in any 24‑hour rolling...

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...

I am using Win 11 with Office 365 at home. Yes everything is up to date with the latest everything. Let me repeat...everything is up to date. Here is the issue. First I use the snipping tool to capture and image, then paste that image into a new email I'm writing. It works fine. However...

Organizations increasingly face the challenge of distributing vital information to vast internal audiences, whether via automated alerts, system notifications, or large-scale transactional communications. For enterprise IT teams running on Microsoft 365, the recent introduction of Exchange...

Implementing Domain-based Message Authentication, Reporting, and Conformance (DMARC) in Microsoft 365 is a critical step toward enhancing email security by preventing domain spoofing and phishing attacks. However, the process is fraught with challenges that can complicate deployment and...

I have been a user of Hotmail for years long before windows 7. Now I am having oroblems since I have windows 7. My daughter sends me loads of emails from New Zealand and I only get a few, I have checked everything I can but no luck but if she sends them to my other address I get them all. I...

I started to use a new win7 machine (Dell XPS 8000) for our buiness operation a few days ago. What I found was that many emails are not receiving by Win 7 machine (I use Outlook 2007). When I opened one of our XP computers in the late afternoon, I found tons of emails in the XP computer. Both...