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100 recipients

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The tag '100 recipients' on WindowsForum.com covers Microsoft's new outbound email cap for MOERA (onmicrosoft.com) tenant domains. Starting October 15, 2025, these free domains are limited to 100 external recipients per 24-hour rolling window to combat abuse and protect delivery for legitimate Microsoft 365 customers. Internal mail flows remain unaffected. This change impacts trials and free tenants, with staged rollout waves. Discussions focus on the technical details, enforcement, and implications for users relying on MOERA domains for external email.
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    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
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