`enable`: `<boolean>` ('default =' `0`)::

Flag to enable or disable polling.

`interval`: `<integer> (1 - 2016)` ::

Only check this site every <interval> poll cycles. A poll cycle is 5 minutes.

`keep`: `<boolean>` ('default =' `0`)::

Keep retrieved messages on the remote mailserver.

`pass`: `<string>` ::

The password used tfor server login.

`port`: `<integer> (1 - 65535)` ::

Port number.

`protocol`: `<imap | pop3>` ::

Specify  the  protocol to use when communicating with the remote mailserver

`server`: `<string>` ::

Server address (IP or DNS name).

`ssl`: `<boolean>` ('default =' `0`)::

Use SSL.

`target`: `(?:[^\s\\@]+\@[^\s\/\\@]+)` ::

The target email address (where to deliver fetched mails).

`user`: `<string>` ::

The user identification to be used when logging in to the server

