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Send Email with Option File Size Limit

Currently we can't send Email with Option where the file size is larger than 3mb. Can the limit be increase to match the standard Send Email feature. We send files which need to be approved and some are bigger than 3mb which are not being sent. the flow fails.


"Request entity is larger than limits defined by the external server.

Status: New
New Member

Do you use "Send an email (V2)"? If yes then try to use "Send an email". This should increase the limit from 3 Mb to 49 Mb.

Regular Visitor

Hi Snnicky,


The function I'm using in Flow is the "Send email with Options", but as a work round we sending the attachment separately then the Action Cards (Send email with Options) afterwards for the users to Accept or Reject. Ideally we want the attachments and actions cards on 1 email. 


There will be no confusion if the person gets more than 1 item to approve at once.

Regular Visitor

I have the exact same problem with "Send an email from a shared mailbox (V2)". For this one is there another option to increase the limit? 

Regular Visitor

@snnicky  I don't see the original "Send an email"... it looks like they did away with that and only have "Send an email (V2)" which still has the 3 Mb limitations. Do you know if there are any work arounds?

New Member

I see "Send an email" in the list of available actions if I search for action using action name. If I use "Office 365 Outlook" category as a filter then the action "Send an email" is not shown. Try to search for action by the name.

Resolver I

This is a very important feature.  We would need to send documents attached in mail for approvals to senior management who wouldn't want to browse or navigate to another page to look at the documents.

Regular Visitor

@snnicky  do you see it as an “office 365 outlook” category when you search it? I only see it as an “” category when I type it in. It seems like it can’t be used alongside an “office 365 outlook connector”

Regular Visitor

@kevingeorget would you not use the  Approvals feature, if senior management is on the same tenant?


Resolver I


As i recollect, approval feature takes you to a flow page, where the Approver again needs to click on the task link to see the details and attachments.

These are too many steps for senior management who don't want to interact with another new system (SharePoint here).

I tried to implement the approval feature in a simple way for them- clicking on 2 buttons (Approve and Reject) within the email would send an email back to requester. 'When an email is received' trigger flow will capture the result and update the SharePoint system.


Advocate I

This is a really small limit.  Please expand it please.  I too have flows sending approval requests to senior management.  If I'm going to get adoption by them, it needs to work and be simple as possible.  Send email with options lets them read the email and do the approval all from their email client (on a computer or on mobile) without having to go anywhere else.  It literally needs to be so simple a child could do it.