This is the Debian postfix-gld package, which contains the gld program. gld was written by Salim Gasmi This package was first put together by Santiago Vila , who currently maintains it. The source for this release was downloaded from: https://www.gasmi.net/down/gld-1.7.tgz A small modification has been made to server.c so that it does s/\+.*@/@/ on the sender, to deal with some VERP addresses used by some mailing list managers. gld is Copyright 2004 Salim Gasmi, it may be redistributed and/or modified under the terms of the GNU General Public License, version 2. On Debian systems, the complete text of the GNU General Public License can be found in `/usr/share/common-licenses/GPL'.