+* [muchsync](http://www.muchsync.org/) - replicate and synchronize
+ your notmuch database (mail and tags) across machines
+
+See more exhaustive list of [[software]] notmuch works with and the
+[[initial_tagging]] page for more info on initial tagging of messages.
+
+
+## <span id="send_mail">**Send mail**</span>
+
+By default, NotMuch uses sendmail to send your mail. But if you prefer
+a simpler solution like msmtp, first [install and configure msmtp](http://msmtp.sourceforge.net/).
+
+Then create a symbolic link so that msmtp will be called instead of sendmail
+when you press the keyboard shortcut to send your message.
+
+ $ sudo ln -s /usr/bin/msmtp /usr/local/bin/sendmail
+