Binary package “maildrop” in ubuntu hardy
mail delivery agent with filtering abilities
maildrop is a mail delivery agent (MDA), a program which reads a mail
message from standard input and then delivers the message to your mailbox.
maildrop knows how to deliver mail both in mbox and maildir storing
formats. It can read instructions from a file, directing it how to filter
incoming mail, for example to deliver mail to alternate mailboxes,
or forward it to somewhere else.
It performs all the same functions as procmail, but unlike procmail,
maildrop uses a structured filtering language which is a bit easier
on the eyes. Other differences from procmail include not skipping syntax
errors in filter files (instead deferring the mails for later processing)
and being more resource-efficient when processing mails (not loading
large messages right into memory).