Email is a great way of sending files easily and securely. Gmail used to provide 20MB of attachment limit for a single email i.e. previously you could send a file with a maximum size of 20MB. But now the limit has been increased to 25MB. Google says, “With Gmail, you can send and receive messages up to 25 megabytes (MB) in size. Please note that you may not be able to send larger attachments to contacts who use other email services with smaller attachment limits. If your attachment bounces, you should invite them to Gmail.”
But the Gmail’s flash uploader for attachments doesn’t seem to be to much dedicated in this case. The flash uploader allows you to attach files only upto 10 MB. If the size is more than that, you get an error message. But the basic uploader works quite well and easily lets you upload attachments upto 25MB.