"Attachment size exceeds the allowable limit" error when you add a large attachment to an email message in Outlook
Symptoms
When you add an attachment to an email message in Microsoft Outlook 2013 or later versions, you receive the following error message:
The file you're attaching is bigger than the server allows. Try putting the file in a shared location and sending a link instead.
https://support.microsoft.com/en-us/help/2813269/attachment-size-exceeds-the-allowable-limit-error-when-you-add-a-large
Symptoms
When you add an attachment to an email message in Microsoft Outlook 2013 or later versions, you receive the following error message:
The file you're attaching is bigger than the server allows. Try putting the file in a shared location and sending a link instead.
https://support.microsoft.com/en-us/help/2813269/attachment-size-exceeds-the-allowable-limit-error-when-you-add-a-large