What is the difference between POP3 and IMAP?

POP3 connects to a mailbox, fetches the messages and then stores a copy locally on your computer. This is the recommended option when configuring your email client/program. We recommend using this option if you like to download all of your email onto one computer.

IMAP stores and arranges your messages on the mail server, where your email client/program lists the headers and retrieves messages by request. We recommend this option if like to view your mail from multiple computers. IMAP is like a central store for your email. It will allow you to leave your mail on the Zettagrid server and view email from various locations. If you sometimes use the webmail interface and othertimes use Outlook we recommend using IMAP. This is great for people who move around a lot.

Please Note: Because IMAP stores all email on the Zettagrid mail server, it is more likely that your mailbox quota will be filled through normal use. When using IMAP please monitor the the size of your mailbox and delete email when no longer required.