fastforward handles qmail forwarding according to a cdb database. It can create
forwarding databases from a sendmail-style /etc/aliases or from user-oriented
virtual-domain tables.
fastforward supports external mailing lists, stored in a binary format for fast
access. It has a tool to convert sendmail-style include files into binary
lists.
Package provided by Sen Nagata <sen@eccosys.com> in PR pkg/13889
