maildrop - mail delivery agent with filtering abilities

Copyright 1998-2025, S. Varshavchik.

This program is distributed under the terms of the GNU General Public License. See COPYING for additional information.

https://www.courier-mta.org/maildrop/

Building RPMs

Starting with version 0.99, it is possible to build binary RPMs directly from the source tarball, so there's no longer a need to provide a separate set of source and binary RPMs. You will need RPM 3.0 or higher in order to build a binary RPM. Execute the following command:

   rpm -ta maildrop-3.3.0.tar.bz2

The binary RPM will be built with a customized configuration (userdb, GDBM, and quota enhancements enabled). Afterwards, simply execute rpm -i to install it. That's it.

With RPM 4.1 (Red Hat 8.0) use the 'rpmbuild' command instead of rpm: rpmbuild -ta maildrop-3.3.0.tar.bz2

If you would like to change the RPM build options, move maildrop-3.3.0.tar.gz to your SOURCES directory, extract the file maildrop.spec, move it to your SPECS directory, customize it if necessary, then build from the spec file.

maildrop includes documentation in HTML, as well as traditional man pages. The HTML versions may also be found at https://www.courier-mta.org/maildrop/maildrop.html.

Installation

See INSTALL for installation information. If you are using an RPM-based Linux distribution, you can install build a binary RPM directly from the source code.

Using maildrop with sendmail

Maildrop can be easily used as sendmail's local delivery agent, instead of procmail. Here is the suggested entry for sendmail.cf, courtesy of Eric J. Schwertfeger <ejs@bfd.com>:

Mlocal,         P=/usr/local/bin/maildrop, F=lsAw5:/|@SPfhn, S=10/30, R=20/40,
                T=DNS/RFC822/X-Unix,
                A=maildrop -d $u