onmicrosoft.com

  1. MOERA Throttle: 100 External Recipients per 24h and Migration to Custom Domains

    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...
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    • Replies: 1
    • Forum: Windows News

  2. MOERA Throttling: Migrate from onmicrosoft.com to Your Custom Domain Now

    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...
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    • Replies: 0
    • Forum: Windows News

  3. MOERA Outbound Cap: 100 External Recipients per 24h for onmicrosoft.com

    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...
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    • 100 recipients anti-spam automation azure communication services domain migration email deliverability email security err exchange online external recipients high volume email mail flow message center microsoft 365 moera ndr 550 5.7.236 onmicrosoft.com saas connectors spf dkim dmarc tenant rollout
    • Replies: 0
    • Forum: Windows News