Hi, Followings are some advantages which offered by POP3 Email service. # Since all mails resides on your PC, you can read your mail without being logged onto the Internet. # All messages are stored on your hard drive on your own computer. You only connect to net to download and post your messages from your inbox. # Opening attachments is a quick and painless process because they are already on your PC. # There is no advertising when you read your email unless you are using an Adware email reader like Eudora freeware. # There is not a maximum size on your mailbox, except as determined by the size of your hard drive. # There are often no size limits on the email you send or receive.