javascript to convert thunderbird/seamonkey filters to sieve rules
Web form that converts pasted rule set from thunderbird/seamonkey msgFilterRules.dat filter file into sieve rules suitable for uploading to an imap mail server and compatible with the sieve rule editor plugin for roundcube 'sieverules' (http://www.roundcubeforum.net/7-third-party-contributions/46-api-based-plugins/4878-sieverules-plugin.html)
Procmail-CGI is a cgi-based procmail recipe editor, written in perl. It's main aim is to provide users of *nix IMAP mail systems with the kind of message filtering currently unavailable in many popular MUA's (notably that of the MS Outlook family!!)