Unexpected error 5.7.236 in sending mt emails

MAURIZIO MIRZANI 0 Reputation points
2026-10-15T10:41:13.9766667+00:00

Hello,

since a couple of months I receive unexpected messages of error 5.7.236 although I don't exceed the number of daily sendings. It happens after less than a dozen of sent messages. This prevents further sendings for some time and after some hours I'm again inabled to send messages. I cannot stay stooped for such a long time.

Please, let me know how to solve this problem .

Thanks

Maurizio Mirzani

Outlook | Web | Outlook.com | Email
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  1. Lucus-V 14,225 Reputation points Microsoft External Staff Moderator
    2026-10-15T18:35:01.09+00:00

    Hi MAURIZIO MIRZANI,

    I really wish I could assist you directly on this issue. However, the behavior you're experiencing is tied to back‑end systems and service functionality, and unfortunately, we don't have the authority or access required to investigate or make changes at that level.

    Please note that this is a user-to-user support forum. Moderators, contributors including external Microsoft employees cannot directly intervene in Microsoft product features or access back-end systems. Our role is limited to providing technical guidance on reported issues, requests, or ideas.

    Given these limitations, the most appropriate avenue for product changes or feature requests is to contact Microsoft Support.

    Thank you for your understanding, and I hope the support team can resolve this for you soon.

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