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send an email (V2) Email won't send as message too large but works on other flow

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Posted on by Stan_the_IT_man

Hi Power Automate community,

I've created a flow that automates the creation of a new user, creates a starter pack for them, and sends it out as a PDF via email to their personal email. This has been working fine (Let's call this flow 1):

This also saves a copy to SharePoint.

I then realised that I wanted to send the welcome pack a week before the user starts rather than when the user is created, so I created a scheduled flow that runs everyday: This looks through the table of new starters and picks out users that are starting within a week, and haven't had their starter pack sent to them (Let's call this flow 2).

It would do this by attaching the copy from the SharePoint (Created in flow 1) to an email and sending it to a personal address. The flow would run successfully however the email would not send, and even though it is the same file. I get an error in message trace with the following:

I then tried creating the PDF, similarly to flow 1 and still get the same error, here is flow 2 modified to create the PDF:

When I try to switch to the new editor on Flow 1 I also notice I get this error:

Any help would be much appreciated. Thank you very much in advance!

Best,

Stan

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Building flows

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trice602 15,329 Super User 2025 Season 2 on at

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Re: send an email (V2) Email won't send as message too large but works on other flow

Hi @Stan_the_IT_man ,

It looks like the email was sent so there isn't an issue with the flow development; it's that Gmail rejected the email. One thing that I have done that is a better solution, is instead of sending large attachments, drop your files in a OneDrive folder and change the permissions to "anyone with the link", if your org allows that. Then, just send the links. Seems wierd though, how big is the pdf?

You can't switch to the new designer on this flow because some of the actions are not supported.

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stanislawo 4 on at

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Re: send an email (V2) Email won't send as message too large but works on other flow

Hi @trice602,

I would agree with you however the email still sends with the first flow and it's the exact same attachment, and I have read that there's an issue that can be caused by the new automate editor. Either way it seems like I've done something wrong, or the flow isn't working as intended.

I know it's large but the file size is 24MB, for which the google maximum size to receive is 50MB and we can't really send links as a lot of the people are not going to have Microsoft accounts.

Thank you very much for the help though. If I'm wrong about the links, please let me know.

best,
Stan

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trice602 15,329 Super User 2025 Season 2 on at

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Re: send an email (V2) Email won't send as message too large but works on other flow

Hi @stanislawo ,

Understood. I overlooked that first flow run. If the first flow is currently sending this successfully then the issue is the new editor. In your 2nd flow, switch to the classic version and make sure you save the flow (while in classic). There's no reason why this won't send the same attachment as flow 1.

On the send link comments; I understand and agree. The send link option works with "anyone with the link" and is a useful tool when you want to share something with someone, even if they don't have a Microsoft account.

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Stan_the_IT_man 29 on at

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Re: send an email (V2) Email won't send as message too large but works on other flow

Hi Trice,

Sorry for the late reply! Unfortunately this doesn't seem to work. I may try to rebuild the flow only using the old editor to see if this works. If you have any other ideas, please let me know!

Best,
Stan

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