You can easily manage your eMail accounts for each domain added to your account at anytime from your cPanel or Webmail access.
POP3 is short for Post Office Protocol, a protocol used to retrieve email from a mail server. Most e-mail applications (sometimes called an email client) use the POP protocol, although some can use the newer IMAP.
SMTP is short for Simple Mail Transfer Protocol, a protocol for sending e-mail messages between servers. Most e-mail systems that send mail over the Internet use SMTP to send messages from one server to another; the messages can then be retrieved with an e-mail client using either POP or IMAP.
IMAP is short for Internet Message Access Protocol, a protocol used for retrieving e-mail messages. This is similar to POP3 but supports some additional features such as being able to download emails on multiple computers while leaving a copy on the server.
Spam Assassin, a popular spam protection, is enabled on all accounts at no additional charge.
An auto responder sends a message to the person emailing you with a particular message. This is popular for out of office or on vacation notifications.