Sometimes sending large files via email is not possible due to size limitations, many times you can do a “trial” where you can send a large file for free sometimes up to 2GB. Occasionally people will ask me how to get this accomplished.
I have used some of these and they are quite good to use in a pinch.
This one allows up to 4GB
Another alternative is to upload your files to google docs and send a link to the person to allow them to download it…….if you have google docs this is a great alternative