Power Automate

My flow failed for sending an email using Send an email V2

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Posted on by CU31120352-0

I Have created flow, which will trigger when any user submit an entry into SharePoint using power app.

Flow trigger but it unable to send notification email from user email id who create an entry into SharePoint.

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Building flows

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Vish WR 3,748 on at

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@CU31120352-0

The flow is triggering correctly, but it fails to send the email due to a “You don’t have permission to send as this user” error.

Emails are sent from the account used in the connection. If you’re trying to send from another user’s email, you must have Send As permission for that mailbox. Otherwise, use the same email ID as the connection or grant the required access.

Vishnu WR

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11manish 3,333 on at

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You cannot dynamically send emails from different users in a flow without explicit permissions.

The safest and most scalable approach is to send from a shared mailbox or the flow owner account.

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Power Platform Guy 220 on at

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@CU31120352-0,

Where the problem Is the parameter which you are passing to the From (Send As) this is causing the issue because of that flow run is getting failed.

An Outlook email action always sends mail using the identity of the connection owner, NOT the person who triggered the flow.

A different user submits the Power App

SharePoint item shows Created By / Created Email

Flow triggers correctly the Send an email (V2) action still sends from the flow owner’s mailbox.

☑️Accept as Solution to help others 💙 A Like is appreciated ❓Tag @PowerPlatform Guy for any queries

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MS.Ragavendar 7,431 Super User 2026 Season 1 on at

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@CU31120352-0,

@Vish WR / @11manish/ @Power Platform Guy have already provided the explanations to the problem statement.

Myself adding few points In-addition to that If your expectation is only the mail has to be floated with Requestor / Creator we have only two approaches.

Approach 1

Send email FROM a shared mail box

Create a shared mailbox (PowerApps-noreply@company.com)

Grant Send As permission to the flow owner

In Send an email (V2):

From (Send as) → shared mailbox email

Reply‑To → Created By Email (dynamic)

Mail comes from a neutral org mailbox and Replies go to the actual requester.

Useful Link : https://www.spguides.com/power-automate-shared-mailbox/

Approach 2

If there is no business process or approval or any condition logic and you are using sharepoint as the front end.

Whenever you are creating an item from Power Apps using Patch or Submit Form() you need to add the outlook connector alone in the Power Apps.

Office365Outlook.SendEmailV2(
txt_EmailTo.Text,
txt_Subject.Text,
txt_Body.Text
);

Link:

https://www.spguides.com/power-automate-shared-mailbox/

https://www.matthewdevaney.com/power-apps-send-email-using-outlook-the-complete-guide/

✅If this helped, please Accept as Solution to help others ❤️ A Like is appreciated 🏷️ Tag @MS.Ragavendar for follow-ups.

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Valantis 6,735 on at

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Hi @CU31120352-0,

The error is clear from your screenshot. You are using the "From (Send as)" field with "Created By Email" as the sender, but the account running the flow does not have "Send as" or "Send on behalf of" permission on those user mailboxes. Office 365 blocks this by default.

You have two options:

Option 1 - Remove the From field entirely (simplest fix)
Leave the From field blank. The email will send from the account that owns the flow connection (the person who created the flow). This works immediately with no permission changes needed. You can still include the submitter's email in the body or reply-to so recipients know who submitted.

Option 2 - Grant Send on Behalf permission (if you need the email to appear from the submitter)
An Exchange/M365 admin needs to grant "Send on behalf" permission for each user mailbox, or configure a shared mailbox. Then set From to that shared mailbox address instead of the dynamic user email. Granting it per-user dynamically across all users is not practical.

Option 1 is almost always the right choice for this scenario. The notification email just needs to reach the right person, not necessarily appear to come from the submitter.

Best regards,

Valantis

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Valantis 6,735 on at

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Hi @CU31120352-0,

Just wanted to check in and see if everything is working now. If you still need any help, feel free to let me know.

Also, if the issue is resolved, it would be great if you could mark the answer as solved so others with the same question can find it easily.

Thanks and have a great day!

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