Hot answers tagged file-size
Google Takeout Can help you to liberate your data from Google. Check this link. https://www.google.com/settings/takeout
That's not something you can do from within Gmail. At best, you'll need to work out a way to export all of the messages to another location and use a different tool to sum up their sizes. Even then, that's only going to give you an approximation.
You can send an unlimited number of files per month. Single file size is limited to 300 MB for the free service with an unlimited transfer limit. Source: SendGenie Admin
Only top voted, non community-wiki answers of a minimum length are eligible