To know if you are using IMAP or POP, choose <span class="menuchoice"> <span class="guimenu">Configuration</span> ▸ <span class="guimenuitem">Edit accounts…</span></span> and refer to the <span class="guilabel">Protocol</span> column in the list of accounts.
1. Choose **Configuration** ▸ **Edit accounts…**, select your IMAP account in the list of accounts, and click **Delete** to delete it. Doing so does not delete any email stored on the server.
1. Choose **Configuration** ▸ **Edit accounts…**, select your IMAP account in the list of accounts, and click **Edit** to edit its preferences.
