mail-filter/maildrop
Mail delivery agent/filter
USE Flags
berkdb
Global: Adds support for sys-libs/db (Berkeley DB for MySQL)
debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
dovecot
* This flag is undocumented *
gdbm
Global: Adds support for sys-libs/gdbm (GNU database libraries)
ldap
Global: Adds LDAP support (Lightweight Directory Access Protocol)
mysql
Global: Adds mySQL Database support
postgres
Global: Adds support for the postgresql database
static-libs
Global: Build static libraries
authlib
Global: Add courier-authlib support
Local: Add courier-authlib support
+tools
* This flag is undocumented *
trashquota
Global: include deleted messages, and the Trash folder, in the estimated quota usage for maildirs