Q: I need to distribute a file to recipients on my email list. Should I send it as an attachment in e-mail?
Email is not intended to be a file transfer mechanism. Unfortunately email programs make it easy to send large files to multiple recipients. You should never send attachments larger than 1MB. They waste disk space and can prevent someone's pobox from opening correctly because the mail software times out waiting for large messages. Also, don't send attachments of any size to large mailing lists. Seek out other methods of distributing files to groups of people, such as making them available for download from the Web.