Specifying Mailboxes to Operate Upon

There are four basic ways of passing mailboxes to guimb.

guimb [options] [mailbox...]

The resulting mailbox is not saved, unless the user-supplied scheme program saves it.

guimb [options] --mailbox defmbox

The contents of defmbox is processed and is replaced with the resulting mailbox contents. Useful for applying filters to user's mailbox.

guimb [options] --mailbox defmbox mailbox [mailbox...]

The contents of specified mailboxes is processed, and the resulting mailbox contents is appended to defmbox.

guimb [options] --user username [mailbox...]

The contents of specified mailboxes is processed, and the resulting mailbox contents is appended to the user's system mailbox. This allows to use guimb as a mail delivery agent.

If no mailboxes are specified in the command line, guimb reads and processes the system mailbox of the current user.