1. log in to your webmail with your email address and password.
  2. Click thePreferences tab.
  3. Under the Mail settings to the left you will see Accounts.
  4. Click Add External Account, a External Account Setting screen will open.
  5. Add the email address and give it a name.
  6. Set the account to pull your mail server either by POP3 or IMAP and supply the username, password, server name, port and encryption.
    POP
    Allows you to download the messages into the same inbox, but will not preserve folder structure.
    IMAP
    does preserve folder structure, but shows the account in a separate inbox.
  7. Optionally, you can set a custom "Reply-to" address and a customized signature as well.
  8. Save the settings and you have completed the External Zimbra Account.

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