I have integrated a mailing list with XWiki. The mailing list is built with procmail, which invokes a command line Java program to extract the email addresses from the XWiki database and forward each message. All the emails are archived in a IMAP folder which is viewed by this template code: <h3 class="heading-1">Mail Archive</h3> #set($user = "xxx") #set($pass = "xxx") #set($fldr = "${context.database}.listname") #set($store = $xwiki.mail.getStore("imap")) $store.connect("localhost", $user, $pass) #set($fldr = $store.getFolder($fldr)) $fldr.open(1) #set($msgnum = $parameterParser.getInt("msg",0)) #if($msgnum != 0) <a href="?">Message Index</a> \\ #set($mail = $fldr.getMessage($msgnum)) From: #foreach($from in $mail.getHeader("from")) $xwiki.getFormEncoded($from) #end \\ To: #foreach($from in $mail.getHeader("to")) $xwiki.getFormEncoded($from) #end \\ Subject: $xwiki.getFormEncoded($mail.subject) \\ Message: #if($mail.isMimeType("text/plain") || $mail.isMimeType("text/html")) $mail.getContent() #else (Unable to display) #end #else The following mail was sent to the list during the past year: #set($count = $fldr.messageCount) Showing $count of $count messages: <table class="wiki-table" cellpadding="0" cellspacing="0" border="0"> <tr class="table-odd"> <th>Subject</th><th>From</th><th>Date</th> </tr> #foreach ($i in [$fldr.messageCount..1]) #set($mail = $fldr.getMessage($i)) <tr> <td> <a href="?msg=$mail.getMessageNumber()">$xwiki.getFormEncoded($mail.subject)</a> </td><td> #set($froms = $mail.getHeader("from")) #foreach($from in $froms) $xwiki.getFormEncoded($from) #end </td><td> #if($!mail.sentDate) $formatter.formatShortDateTime($!mail.sentDate) #end </td> </tr> #end </table> #end $store.close() Adrian Hall wrote: -- Trevor Cox skahasoftware.com Vancouver, Canada

My procmail mailing list does not require any modification to XWiki. It uses the existing capability of the mail plug-in to display messages from an IMAP store. When messages arrive, I chose to access the database directly using JDBC rather than invoke something like "wget http://www.mywiki.com/..." for performance and reliability. I have seen other people are interested in how to access the database from outside of XWiki, so maybe this would be a useful example. The command line java program is invoked with this shell script: #!/bin/sh java -cp /usr/local/tomcat/common/lib/mysql-connector-java-3.1.7-bin.jar:. \ XWikiMail $1 $2 $3 $4 The command-line java program: // // A command-line program to extract the list of email addresses for an XWiki Group. // Trevor Cox // Nov 9, 2005 // www.skahasoftware.com // import java.net.*; import java.io.*; import java.util.*; import java.sql.*; public class XWikiMail { public XWikiMail() {} public static void main(String[] params) throws java.lang.Exception { if(params.length != 2) { System.out.println( "Usage: xwikimail <database> <group>\n"); throw new java.lang.Exception("Incorrect parameters"); } String site=params[0]; String group=params[1]; String url = "jdbc:mysql://localhost/" + site; String dbuser = "xwiki"; String dbpwd = "xwiki"; String query = "select xws_value from xwikiobjects join xwikistrings on xwo_id=xws_id " + " where xwo_name='XWiki." + group + "' and " + " xwo_classname='XWiki.XWikiGroups';"; Class.forName ("com.mysql.jdbc.Driver"); Connection con = DriverManager.getConnection(url, dbuser, dbpwd); Statement stmt = con.createStatement (); ResultSet rs = stmt.executeQuery (query); while ( rs.next() ) { String member = rs.getString(1); String query2 = "select xws_value from xwikiobjects join xwikistrings on xwo_id = xws_id" + " where xwo_name='" + member + "' and xwo_classname='XWiki.XWikiUsers' and" + " xws_name='email';"; Statement stmt2 = con.createStatement (); ResultSet rs2 = stmt2.executeQuery (query2); while ( rs2.next() ) { System.out.print(rs2.getString(1)+" "); } } rs.close(); stmt.close(); con.close(); } } Here's a procmail rule that distributes mail sent to the mailing list &lt;group&gt;(a)&lt;wiki&gt;.xwiki.com (I've simplified my original script for clarity). :0 * ^(To|Cc):.*\/[a-z]+@[a-z]+\.xwiki\.com { GROUP=`echo $MATCH | sed s/@.*//` SITE=`echo $MATCH | perl -pe &quot;s/.*(a)([^\.]*).*/\1/;&quot;` XWIKISENDMAIL=`xwikimail $SITE $GROUP` :0 c $SITE.$GROUP # Store messages in folder like mywiki.mygroup :0 ! $XWIKISENDMAIL } Trevor Cox Skaha Software jeremi joslin wrote: -- Trevor Cox skahasoftware.com Vancouver, Canada