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Power Automate - Building Flows
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Difference between "Send an email notification (V3)" and "Send an email (V2)"

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Posted on by 353

Hi,

MailConnector.png

OutlookConnector.png

 

 

 

I am researching the differences between the 

"Send an email notification (V3)" Action which comes with the Mail Connection

and the

"Send an email (V2)" Action which comes with the Office 365 Outlook Connection.

 

I am fully aware that you need to have a license and online mailbox in order to use the Office 365 Outlook connection. That being said, If a user has the necessary elements to use either action, why might you choose one over the other?

 

Thank you for your assistance

Matt

 

Reference Links

Mail connector Reference: https://docs.microsoft.com/en-us/connectors/sendmail/

Office 365 Outlook Connector Reference: https://docs.microsoft.com/en-us/connectors/office365/

  • Sean9 Profile Picture
    124 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    is the v3 email limitations for environment or tenant level?

  • jleampark Profile Picture
    25 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    Rob,

     

    I was finally able to get a Shared Mailbox set up in my org to test.  It looks good.

     

    I just want to get around the awful (but understandable) Microsoft limits on V3 or 5 emails in 5 minutes and 100 emails in 24 hours.

     

    Am I reading this correctly?  V2 is "limited" to 300 emails every 60 seconds.  But is it also limited to 30 concurrent requests?  

  • RobElliott Profile Picture
    10,155 Super User 2025 Season 1 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    The shared mailbox has to exist before it can be referenced in a flow. I don't know how you create a shared mailbox because that's done by others in my team.

  • jleampark Profile Picture
    25 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    Thanks! 

     

    I get an error though...

     

    REST API is not yet supported for this mailbox. This error can occur for sandbox (test) accounts or for accounts that are on a dedicated (on-premise) mail server.

     

    Do I need to add this shared mailbox from admin https://admin.microsoft.com/#/homepage center? Because I do not have access.

  • RobElliott Profile Picture
    10,155 Super User 2025 Season 1 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    Instead of selecting Send an email (v2) you select Send an email from a shared mailbox (v2)

     

    0-SharedMailbox.png

     

  • jleampark Profile Picture
    25 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    Sorry.  I used V3 and V2 as shorthand because I am lazy and impatient.  

     

    Where is the "send email from a shared mailbox" option???  That seems like a good compromise.

     

    And thank you.

  • RobElliott Profile Picture
    10,155 Super User 2025 Season 1 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    You're getting mixed up: the v3 refers to Send an email notification (v3). V2 refers to send an email (v2). They are not the same actions and send an email (v3) is not a newer version of send an email (v2). Do't use the send an email notification (v3); it has problems and seems to fail regularly.

     

    To use a shared mailbox to send an email you need to use the send an email from a shared mailbox action.

     

    Rob
    Los Gallardos
    If I've answered your question or solved your problem, please mark this question as answered. This helps others who have the same question find a solution quickly via the forum search. If you liked my response, please consider giving it a thumbs up. Thanks.

  • jleampark Profile Picture
    25 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    How would one go about using a shared mailbox in the From:?

     

    We were told to use V3 over V2 because V3 says the emails come from microsoft@powerapps.com whereas V2 emails are "Sent By" the flow creator.  

     

     

  • jkb6011 Profile Picture
    122 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    I've found some documentation on reddit that says the 100 email limit is per user per day, not per flow per day. Reached out to some individuals in my organization and they said it is per user per day. Still not 100% certain, but wanted to put this out there for anyone looking for an answer to this question.

     

    https://www.reddit.com/r/Office365/comments/p6o9yw/power_automate_sending_an_email_notification_v3/

     

    https://www.reddit.com/r/MicrosoftFlow/comments/p6o88x/limits_of_send_an_email_notification_v3/

     

  • RobElliott Profile Picture
    10,155 Super User 2025 Season 1 on at
    Re: Difference between "Send an email notification (V3)" and "Send an email (V2)"

    I believe it is 100 emails per day per flow.

     

    Rob
    Los Gallardos
    If I've answered your question or solved your problem, please mark this question as answered. This helps others who have the same question find a solution quickly via the forum search. If you liked my response, please consider giving it a thumbs up. Thanks.

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