How can a file be sent by email?

Solution 1: Zip the file and attach it to your email

Solution 2: Use an email attachment sending service. This gets round the problem of large or multiple mp3 files (or any file types for that matter) which you won't be able to send using your usual email system even when zipped as they will be too large for a standard mail server to process (standard limits are between 10 and 20Mb).

Email attachment sending services allow you to send an email as normal, they remove the attachment and put it on their servers and your recipient receives your original email message with a link to download the file. This avoids emails bouncing or disappearing because they are too large because the large file sending service deals with the large part of your email- the attachment.

There are a variety of services available with a range of maximum file sizes you can send through them.