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Send email from M365 Group's mailbox

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Posted on by AnnetteM

I have a flow that creates tasks in a Planner from data submitted in an MS Form. Based on a condition, I would like to send an email to the email supplied in the submitted form which will include followup information. I saved the document in my OneDrive and shared with everyone and then get the document from there to add as an attachment in the email. The one piece I am missing is to send the email from the M365 groups mail box and not mine or a service account as I want the email conversations to continue via that mail account. Is that possible? I tried using send email (v3) but it asks me to sign up for a service and I am not sure what that means.

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JisungHan Microsoft Employee on at

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Hi @AnnetteM ,

Does the M365 Group's mailbox means "Shared Mailbox"? https://docs.microsoft.com/en-us/microsoft-365/admin/email/create-a-shared-mailbox?view=o365-worldwide

If it is "Shared Mailbox" you need "Full Access" permission for the "Shared Mailbox" to send/interact/read emails from your Outlook application side.

Action Plan

===========

1. Contact your Exchange admin

2. Ask to grant "Full Access" permission of the Shared Mailbox to your account: https://docs.microsoft.com/en-us/exchange/collaboration-exo/shared-mailboxes#which-permissions-should-you-use

3. Open and use a shared mailbox in Outlook: https://support.microsoft.com/en-us/office/open-and-use-a-shared-mailbox-in-outlook-d94a8e9e-21f1-4240-808b-de9c9c088afd?ui=en-US&rs=en-AU&ad=AU

Hope this helps. Thanks!

Best regards,

Jisung Han

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AnnetteM on at

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The mailbox is inherited (as the calendar) from the creation of an M365 group which is necessary to create a Planner. I am the owner of the group. I don't believe it may be the same as a traditional "shared mailbox" in exchange as the M365 group is part of the cloud.

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ScottShearer 25,290 Most Valuable Professional on at

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@AnnetteM

Try using the Send an email from a shared mailbox action instead.

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AnnetteM on at

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I have also tried that using the M365 group's email address in the "Original Mailbox Address" field and get this message:
I also found that there is an Office 365 Groups Mail Connector (https://flow.microsoft.com/en-us/blog/use-our-new-office-365-groups-mail-connector/) which I think would suffice in this instance, however it is not available to GCC.
Any other ideas?

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VictorIvanidze 13,079 on at

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Hi @AnnetteM , just use the "Send an email (V2)" action. Populate the field "From (Send as)" and place there the address of your group.

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AnnetteM on at

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As I noted above, even though I am the owner of an M365 group, I still get the message that I don't have rights to send on behalf of. M365 groups must have some nuances to them.

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VictorIvanidze 13,079 on at

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Hi @AnnetteM,

did you assign yourself the "send as" right also? (Edit Microsoft 365 Group > Group Delegation)

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AnnetteM on at

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Ah, that was the piece I was missing. So to summarize:
I added a service account as a "send as" delegate on the M365 group
Used "Send an email (V2)" action with the M365 groups email in the "From(Send as)" field
Used the service account as the connection for the "Send an email (V2)"
Thank you!

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