iOpus BEEE

BEEE is a unique, award-winning email utility that automates the vast majority of your email tasks. It helps you email-enable almost anything.
This "Email-Bee" lets you automatically email designated files or folders at specified time intervals.

Just select the file you want to send, add your email information and enter the time interval to send the file. Additionally you may specify the criteria that should be met (send it always, only if changed, or if it has grown by a specific amount of bytes), and the program handles the connection to your provider and sending the file via email. BEEE can automatically zip compress the files before sending, making the mailing of even large files a snap.