Limit on File Sizes to be Transfer
Is there a file size limit for files you send to SharePoint using OnePlaceMail from file shares.
Ilia Zhukov commented
thank you for your question.
There is no size limit for files you upload using OnePlaceMail but it's necessary to edit web.config of your web application to increase the maximumRequestLength and executionTimeout:
After that please perform an IISreset.
Hope this will help.