exchange online smtp auth using shared mailbox

dirkdigs 921 Reputation points
2021-09-02T19:00:18.823+00:00

Hello,
Is it possible to use a shared mailbox for SMTP AUTH (Scan-to-Email) or does it need to be a regular user mailbox with 1 exchange online license?

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Andy David - MVP 143.6K Reputation points MVP
    2021-09-02T19:04:42.61+00:00

    A shared mailbox's account is disabled, so not possible. It needs to be licensed as a regular mailbox.
    See my response:
    https://techcommunity.microsoft.com/t5/exchange/exchange-online-shared-mailbox-smtp-and-imap/m-p/85783

    Now, Having said that. If you were to use a different authenticated, licensed account that has SEND AS rights to that shared mailbox, that should work in theory.

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