1. Install latest version of Berkeley DB.
> wget http://www.sleepycat.com/update/snapshot/db-4.1.25.tar.gz
> tar -xvzf db-4.1.25.tar.gz
> cd db-4.1.25
> cd build_unix
> ../dist/configure
> make
> make install
> edit /etc/ld.so.conf and add /usr/local/BerkeleyDB.4.1/lib
to list of search paths
> ldconfig
2. Setup devtools/Site/site.config.m4
define(`confMAPDEF', `-DNEWDB')
define(`confINCDIRS', `-I/usr/local/BerkeleyDB.4.1/include/')
define(`confLIBDIRS', `-L/usr/local/BerkeleyDB.4.1/lib/')
3. Recompile sendmail
> sh Build -c
4. Install sendmail
> sh Build install
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