There are a number of solutions for sending people large files and email is not one of the best as it is not really a file sharing system.
See this article for reasons why sending large attachment by email doesn’t work
Here are some alternate ways of sending large file attachments
- Dropbox – Share files across machines, with friends and publicly for free Dropbox is a utility that allows you to instantly share files between machines, and even with other users elsewhere on the internet. Up to 2GB is free.
- WeTransfer – an online file-transferring platform where you give them your intended email recipient and your email, upload the file and the rest is history. This is my preferred solution and something I use a lot as it makes it so easy for the person receiving the file.