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After change of service mail ID flow failed

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Posted on by HN-13111805-0

There is a Power Automate flow with a 'Send an email' action, where I changed the existing service email ID to a new one. After making this change, the flow is failing and showing an error "The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account., Cannot submit message."
How can I resolve this issue?

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Building flows

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trice602 15,402 Super User 2025 Season 2 on at

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Hi,

Your power automate flow can only send messages on your behalf or through an account you have the permissions. As an example, I cannot send an email on behalf of a co-worker because then I would have complete access to their 365 account (they would have to give me their PW).

You can use a service account (instead of your account), just update the connection string to the service account. Another popular alternative is to use Send-As field and send emails from a no-reply account (again, you have permissions to send/receive from it).

Last option is to use the connection string for a shared-inbox and send messages from there. So here's a recap of your options:

1) as you with a send-as option

2) as you with send-as and reply-to options

3) service account

4) service account with a reply-to option

5) use a shared inbox

Let me know if that helps!

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⭐ If this was helpful, please like and/or mark as a verified answer to help others find this too!

Always glad to help! 💯💯💯💯💯

Tom

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trice602 15,402 Super User 2025 Season 2 on at

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Hey there!

I am following up on this post after change of service mail id flow failed in this category building flows from 11/13/2024. I know the post is a little older, but it is a common question here so wanted to take a moment and follow-up. I see there have been 1 replies and 1 likes and asking if your question has been answered. If so, please help the community out by completing one or more of the following actions! Thanks in advance!

Easy as 1-2-3 ‼️💯⭐😎🆒🙏

1) Mark a reply as a verified answer - this is essential, and it helps others with the same general question find this thread. ✅

2) You can also mark one of more replies as a verified answer. Please take a moment and give the author credit for volunteering their time. ✌️

3) Like one or more replies. Kudos always greatly appreciated! 👍

Pro tip: if you found your own solution or workaround, feel free to add a reply to your own post and mark it as the solution too! The goal is to get this thread marked with a verified answer by anyone that finds one or more replies helpful!

Again, thanks in advance for reading and responding, always glad to help! Tom 💯💯💯💯💯

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trice602 15,402 Super User 2025 Season 2 on at

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If I can help with anything else please let me know or tag me in a future post, I enjoy reading and answering questions. Always glad to help! Tom 💯💯💯💯💯

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