This application checks your mail-boxes and reports new, read and unread mail. It is highly configurable.

Options include:

- It alarms you when new mail has arrived.
- Start a mail program by pressing the envelope.
- Displays unread and read mail.
- All the colors an gradients can be changed.
- Can be configured so it only shows up when new mail has arrived.
- Option to always stay on top (can be changed using the mouse),
- Support for multiple mail boxes.
- Support for counting mail through external program for instance flist to check nmh mail or fetchpop/fetchmail to check mail on remote sites.
- Support for POP, IMAP etc. through external program ( tested with fetcmail and fetchpop).
- Possibility to 'copy' Blackbox toolbar style.
- Ability to start command when new mail arrives (eg. to play sound).
- Support for Blackox Slit (will be in next version of Blackbox, 0.50.4 ?).
- Menu showing all mailboxes (and unread/total mail in these boxes).