Reduce the Size of Pictures and Attachments
When one sends a message that exceeds the message size limit for either the user's or the recipient's mail server, the message will be returned to the user and not delivered. This is often called a "Bounced" message. Optimizing the size of pictures and attachments for e-mail helps to avoid exceeding the maximum message size limits associated with most e-mail accounts. Messages increase in size while in transit through the Internet beyond the actual sum of the size of text, graphics, pictures, and attachments. Encoding of a message for transmission through the Internet leads to a size increase of approximately one-third.