diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/base/content/mail3PaneWindowCommands.js thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mail3PaneWindowCommands.js
--- thunderbird-1.5.0.5/mozilla/mail/base/content/mail3PaneWindowCommands.js	2005-07-13 22:39:05.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mail3PaneWindowCommands.js	2006-07-27 10:20:48.489275945 +0100
@@ -151,8 +151,10 @@
 			case "cmd_replySender":
 			case "cmd_replyGroup":
 			case "cmd_replyall":
 			case "button_replyall":
+			case "cmd_replyList":
+			case "button_replyList":
 			case "cmd_forward":
 			case "button_forward":
 			case "cmd_forwardInline":
 			case "cmd_forwardAttachment":
@@ -290,8 +292,10 @@
       case "cmd_replySender":
       case "cmd_replyGroup":
       case "cmd_replyall":
       case "button_replyall":
+      case "cmd_replyList":
+      case "button_replyList":
       case "cmd_forward":
       case "button_forward":
       case "cmd_forwardInline":
       case "cmd_forwardAttachment":
@@ -461,8 +465,11 @@
 				break;
 			case "cmd_replyall":
 				MsgReplyToAllMessage(null);
 				break;
+			case "cmd_replyList":
+				MsgReplyToListMessage(null);
+				break;
 			case "cmd_forward":
 				MsgForwardMessage(null);
 				break;
 			case "cmd_forwardInline":
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/base/content/mailCommands.js thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mailCommands.js
--- thunderbird-1.5.0.5/mozilla/mail/base/content/mailCommands.js	2005-10-04 04:22:35.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mailCommands.js	2006-07-27 10:20:48.491275587 +0100
@@ -259,9 +259,9 @@
       if ((messageIDScheme == 'http' || messageIDScheme == 'https') &&  "openComposeWindowForRSSArticle" in this) 
         openComposeWindowForRSSArticle(messageID, hdr, type); 
       else if (type == msgComposeType.Reply || type == msgComposeType.ReplyAll || type == msgComposeType.ForwardInline ||
                 type == msgComposeType.ReplyToGroup || type == msgComposeType.ReplyToSender || 
-                type == msgComposeType.ReplyToSenderAndGroup ||
+                type == msgComposeType.ReplyToSenderAndGroup || type == msgComposeType.ReplyToList ||
                 type == msgComposeType.Template || type == msgComposeType.Draft)
       {
         msgComposeService.OpenComposeWindow(null, messageUri, type, format, identity, msgWindow);
         //limit the number of new compose windows to 8. Why 8? I like that number :-)
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/base/content/mailContextMenus.js thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mailContextMenus.js
--- thunderbird-1.5.0.5/mozilla/mail/base/content/mailContextMenus.js	2005-02-01 18:04:16.000000000 +0000
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mailContextMenus.js	2006-07-27 10:20:48.621252337 +0100
@@ -123,8 +123,9 @@
 
   SetupReplyToSenderMenuItem("threadPaneContext-replySender", numSelected, false);
   SetupReplyToNewsgroupMenuItem("threadPaneContext-replyNewsgroup", numSelected, isNewsgroup, false);
   SetupReplyAllMenuItem("threadPaneContext-replyAll", numSelected, false);
+  SetupReplyToListMenuItem("threadPaneContext-replyList", numSelected, false);
   SetupForwardMenuItem("threadPaneContext-forward", numSelected, false);
   SetupForwardAsAttachmentMenuItem("threadPaneContext-forwardAsAttachment", numSelected, false);
 
   ShowMenuItem("threadPaneContext-sep-reply", true);
@@ -179,8 +180,14 @@
   ShowMenuItem(menuID, (numSelected <= 1) && !forceHide);
   EnableMenuItem(menuID, (numSelected == 1));
 }
 
+function SetupReplyToListMenuItem(menuID, numSelected, forceHide)
+{
+  ShowMenuItem(menuID, (numSelected <= 1) && !forceHide);
+  EnableMenuItem(menuID, (numSelected == 1));
+}
+
 function SetupForwardMenuItem(menuID, numSelected, forceHide)
 {
   ShowMenuItem(menuID,  (numSelected <= 1) && !forceHide);
   EnableMenuItem(menuID, (numSelected > 0));
@@ -474,8 +481,9 @@
   SetupEditAsNewMenuItem("messagePaneContext-editAsNew", numSelected, (numSelected == 0 || hideMailItems));
   SetupReplyToSenderMenuItem("messagePaneContext-replySender", numSelected, (numSelected == 0 || hideMailItems));
   SetupReplyToNewsgroupMenuItem("messagePaneContext-replyNewsgroup", numSelected, isNewsgroup, (numSelected == 0 || hideMailItems));
   SetupReplyAllMenuItem("messagePaneContext-replyAll" , numSelected, (numSelected == 0 || hideMailItems));
+  SetupReplyToListMenuItem("messagePaneContext-replyList" , numSelected, (numSelected == 0 || hideMailItems));
   SetupForwardMenuItem("messagePaneContext-forward", numSelected, (numSelected == 0 || hideMailItems));
   SetupCopyMessageUrlMenuItem("messagePaneContext-copyMessageUrl", numSelected, isNewsgroup, (numSelected == 0 || hideMailItems)); 
   SetupCopyMenuItem("messagePaneContext-copyMenu", numSelected, (numSelected == 0 || hideMailItems));
   SetupMoveMenuItem("messagePaneContext-moveMenu", numSelected, isNewsgroup, (numSelected == 0 || hideMailItems));
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/base/content/mailWindowOverlay.js thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mailWindowOverlay.js
--- thunderbird-1.5.0.5/mozilla/mail/base/content/mailWindowOverlay.js	2006-05-01 23:17:22.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mailWindowOverlay.js	2006-07-27 10:20:48.688240354 +0100
@@ -953,8 +953,18 @@
     (event && event.shiftKey) ? msgComposeFormat.OppositeOfDefault : msgComposeFormat.Default,
     loadedFolder, messageArray);
 }
 
+function MsgReplyToListMessage(event)
+{
+  var loadedFolder = GetLoadedMsgFolder();
+  var messageArray = GetSelectedMessages();
+
+  ComposeMessage(msgComposeType.ReplyToList, 
+    (event && event.shiftKey) ? msgComposeFormat.OppositeOfDefault : msgComposeFormat.Default,
+    loadedFolder, messageArray);
+}
+
 function MsgForwardMessage(event)
 {
   var forwardType = 0;
   try {
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/base/content/mailWindowOverlay.xul thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mailWindowOverlay.xul
--- thunderbird-1.5.0.5/mozilla/mail/base/content/mailWindowOverlay.xul	2005-10-24 05:01:20.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/mailWindowOverlay.xul	2006-07-27 10:20:48.759227656 +0100
@@ -215,8 +215,9 @@
   <command id="cmd_reply" oncommand="goDoCommand('cmd_reply')"/>
   <command id="cmd_replySender" oncommand="goDoCommand('cmd_replySender')"/>
   <command id="cmd_replyGroup" oncommand="goDoCommand('cmd_replyGroup')"/>
   <command id="cmd_replyall" oncommand="goDoCommand('cmd_replyall')"/>
+  <command id="cmd_replyList" oncommand="goDoCommand('cmd_replyList')"/>
   <command id="cmd_forward" oncommand="goDoCommand('cmd_forward')"/>
   <command id="cmd_forwardInline" oncommand="goDoCommand('cmd_forwardInline')"/>
   <command id="cmd_forwardAttachment" oncommand="goDoCommand('cmd_forwardAttachment')"/>
   <command id="cmd_editAsNew" oncommand="goDoCommand('cmd_editAsNew')"/>
@@ -233,8 +234,9 @@
             oncommandupdate="goUpdateMailMenuItems(this)">
   
   <command id="button_reply"/>
   <command id="button_replyall"/>
+  <command id="button_replyList"/>
   <command id="button_forward"/>
   <command id="button_delete"/>
   <command id="button_mark"/>
   <command id="button_getNewMessages"/>
@@ -351,8 +353,9 @@
   <key id="key_previousMsg" key="&previousMsgCmd.key;"               oncommand="goDoCommand('cmd_previousMsg')"/>
   <key id="key_previousUnreadMsg" key="&previousUnreadMsgCmd.key;"   oncommand="goDoCommand('cmd_previousUnreadMsg')"/>
   <key id="key_reply" key="&replyMsgCmd.key;"                        oncommand="goDoCommand('cmd_reply')" modifiers="accel"/>
   <key id="key_replyall" key="&replyToAllMsgCmd.key;"                oncommand="goDoCommand('cmd_replyall')" modifiers="accel, shift"/>
+  <key id="key_replyList" key="&replyToListMsgCmd.key;"              oncommand="goDoCommand('cmd_replyList')" modifiers="accel, shift"/>
   <key id="key_forward" key="&forwardMsgCmd.key;"                    oncommand="goDoCommand('cmd_forward')" modifiers="accel"/>
   <key id="key_editAsNew" key="&editMsgAsNewCmd.key;"                oncommand="goDoCommand('cmd_editAsNew')" modifiers="accel"/>
   <key id="key_watchThread" key="&watchThreadMenu.key;"              oncommand="goDoCommand('cmd_watchThread')" />
   <key id="key_killThread" key="&killThreadMenu.key;"                oncommand="goDoCommand('cmd_killThread')" />
@@ -437,8 +440,12 @@
     <menuitem id="threadPaneContext-replyAll"
         label="&contextReplyAll.label;"
         accesskey="&contextReplyAll.accesskey;"
         oncommand="MsgReplyToAllMessage(event);"/>
+    <menuitem id="threadPaneContext-replyList"
+        label="&contextReplyList.label;"
+        accesskey="&contextReplyList.accesskey;"
+        oncommand="MsgReplyToListMessage(event);"/>
     <menuitem id="threadPaneContext-forward"
         label="&contextForward.label;"
         accesskey="&contextForward.accesskey;"
         oncommand="MsgForwardMessage(event);"/>
@@ -774,8 +781,12 @@
     <menuitem id="messagePaneContext-replyAll"
         label="&contextReplyAll.label;"
         accesskey="&contextReplyAll.accesskey;"
         oncommand="MsgReplyToAllMessage(event);"/>
+    <menuitem id="messagePaneContext-replyList"
+        label="&contextReplyList.label;"
+        accesskey="&contextReplyList.accesskey;"
+        oncommand="MsgReplyToListMessage(event);"/>
     <menuitem id="messagePaneContext-forward"
         label="&contextForward.label;"
         accesskey="&contextForward.accesskey;"
         oncommand="MsgForwardMessage(event);"/>
@@ -1416,8 +1427,12 @@
             <menuitem label="&replyToAllMsgCmd.label;"
               accesskey="&replyToAllMsgCmd.accesskey;"
               key="key_replyall"
               observes="cmd_replyall"/>
+            <menuitem label="&replyToListMsgCmd.label;"
+              accesskey="&replyToListMsgCmd.accesskey;"
+              key="key_replyList"
+              observes="cmd_replyList"/>
             <menuitem label="&forwardMsgCmd.label;"
               accesskey="&forwardMsgCmd.accesskey;"
               key="key_forward"
               observes="cmd_forward"/>
@@ -1806,8 +1821,9 @@
       <toolbarbutton id="button-newmsg" class="toolbarbutton-1" label="&newMsgButton.label;" tooltiptext="&newMsgButton.tooltip;" oncommand="MsgNewMessage(event)"/>
 
       <toolbarbutton id="button-reply" class="toolbarbutton-1" label="&replyButton.label;" tooltiptext="&replyButton.tooltip;" observes="button_reply" oncommand="MsgReplyMessage(event)"/>
       <toolbarbutton class="toolbarbutton-1" id="button-replyall" label="&replyAllButton.label;" tooltiptext="&replyAllButton.tooltip;" observes="button_replyall" oncommand="MsgReplyToAllMessage(event)"/>
+      <toolbarbutton class="toolbarbutton-2" id="button-replyList" label="&replyListButton.label;" tooltiptext="&replyListButton.tooltip;" observes="button_replyList" oncommand="MsgReplyToListMessage(event)"/>
       <toolbarbutton class="toolbarbutton-1" id="button-forward" label="&forwardButton.label;" tooltiptext="&forwardButton.tooltip;" observes="button_forward" oncommand="MsgForwardMessage(event)"/>
 
       <toolbarbutton type="menu" id="button-file" class="toolbarbutton-1" 
                   label="&fileButton.label;" observes="button_file"
@@ -1935,11 +1951,11 @@
            fullscreentoolbar="true" mode="full"
            customizable="true"
            context="toolbar-context-menu"
 #ifdef XP_MACOSX
-           defaultset="button-getmsg,button-newmsg,button-address,spacer,button-reply,button-replyall,button-forward,spacer,button-delete,button-junk,spacer,button-print,button-stop,spring,throbber-box">
+           defaultset="button-getmsg,button-newmsg,button-address,spacer,button-reply,button-replyall,button-replyList,button-forward,spacer,button-delete,button-junk,spacer,button-print,button-stop,spring,throbber-box">
 #else
-           defaultset="button-getmsg,button-newmsg,button-address,separator,button-reply,button-replyall,button-forward,separator,button-delete,button-junk,separator,button-print,button-stop,spring,throbber-box">
+           defaultset="button-getmsg,button-newmsg,button-address,separator,button-reply,button-replyall,button-replyList,button-forward,separator,button-delete,button-junk,separator,button-print,button-stop,spring,throbber-box">
 #endif
   </toolbar>
   <toolbarset id="customToolbars" context="toolbar-context-menu"/>
 </toolbox>
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/base/content/messageWindow.js thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/messageWindow.js
--- thunderbird-1.5.0.5/mozilla/mail/base/content/messageWindow.js	2005-10-04 04:22:35.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/base/content/messageWindow.js	2006-07-27 10:20:48.827215494 +0100
@@ -767,8 +767,10 @@
       case "cmd_replySender":
       case "cmd_replyGroup":
       case "cmd_replyall":
       case "button_replyall":
+      case "cmd_replyList":
+      case "button_replyList":
       case "cmd_forward":
       case "button_forward":
       case "cmd_forwardInline":
       case "cmd_forwardAttachment":
@@ -828,8 +830,10 @@
 			case "cmd_replySender":
 			case "cmd_replyGroup":
 			case "cmd_replyall":
 			case "button_replyall":
+			case "cmd_replyList":
+			case "button_replyList":
 			case "cmd_forward":
 			case "button_forward":
 			case "cmd_forwardInline":
 			case "cmd_forwardAttachment":
@@ -940,8 +944,11 @@
 				break;
 			case "cmd_replyall":
 				MsgReplyToAllMessage(null);
 				break;
+			case "cmd_replyList":
+				MsgReplyToListMessage(null);
+				break;
 			case "cmd_forward":
 				MsgForwardMessage(null);
 				break;
 			case "cmd_forwardInline":
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/locales/en-US/chrome/messenger/messenger.dtd thunderbird-1.5.0.5+reply-list/mozilla/mail/locales/en-US/chrome/messenger/messenger.dtd
--- thunderbird-1.5.0.5/mozilla/mail/locales/en-US/chrome/messenger/messenger.dtd	2005-09-03 00:38:53.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/locales/en-US/chrome/messenger/messenger.dtd	2006-07-28 10:18:20.902074832 +0100
@@ -296,8 +296,11 @@
 <!ENTITY replyNewsgroupCmd.accesskey	"y">
 <!ENTITY replyToAllMsgCmd.label "Reply to All">
 <!ENTITY replyToAllMsgCmd.accesskey	"p">
 <!ENTITY replyToAllMsgCmd.key	"r">
+<!ENTITY replyToListMsgCmd.label "Reply to List">
+<!ENTITY replyToListMsgCmd.accesskey	"i">
+<!ENTITY replyToListMsgCmd.key	"L">
 <!ENTITY forwardMsgCmd.label "Forward">
 <!ENTITY forwardMsgCmd.accesskey "F">
 <!ENTITY forwardMsgCmd.key	"l">
 <!ENTITY forwardAsMenu.label "Forward As">
@@ -422,8 +425,9 @@
 <!ENTITY getMsgButton.label "Get Mail">
 <!ENTITY newMsgButton.label "Write">
 <!ENTITY replyButton.label "Reply">
 <!ENTITY replyAllButton.label "Reply All">
+<!ENTITY replyListButton.label "Reply List">
 <!ENTITY forwardButton.label "Forward">
 <!ENTITY fileButton.label "File">
 <!ENTITY nextButton.label "Next">
 <!ENTITY previousButton.label "Previous">
@@ -443,8 +447,9 @@
 <!ENTITY getMsgButton.tooltip "Get new messages">
 <!ENTITY newMsgButton.tooltip "Create a new message">
 <!ENTITY replyButton.tooltip "Reply to the message">
 <!ENTITY replyAllButton.tooltip "Reply to sender and all recipients">
+<!ENTITY replyListButton.tooltip "Reply to the mailing list">
 <!ENTITY forwardButton.tooltip "Forward selected message">
 <!ENTITY fileButton.tooltip "File selected message">
 <!ENTITY nextButton.tooltip "Move to the next unread message">
 <!ENTITY previousButton.tooltip "Move to the previous unread message">
@@ -567,8 +572,10 @@
 <!ENTITY contextReplyNewsgroup.label "Reply to Newsgroup">
 <!ENTITY contextReplyNewsgroup.accesskey "y">
 <!ENTITY contextReplyAll.label "Reply to All">
 <!ENTITY contextReplyAll.accesskey "A">
+<!ENTITY contextReplyList.label "Reply to List">
+<!ENTITY contextReplyList.accesskey "L">
 <!ENTITY contextForward.label "Forward">
 <!ENTITY contextForward.accesskey "F">
 <!ENTITY contextForwardAsAttachment.label "Forward as Attachments">
 <!ENTITY contextForwardAsAttachment.accesskey "o">
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/themes/pinstripe/mail/jar.mn thunderbird-1.5.0.5+reply-list/mozilla/mail/themes/pinstripe/mail/jar.mn
--- thunderbird-1.5.0.5/mozilla/mail/themes/pinstripe/mail/jar.mn	2005-10-13 00:03:42.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/themes/pinstripe/mail/jar.mn	2006-07-27 18:01:02.629126075 +0100
@@ -133,8 +133,10 @@
      skin/classic/messenger/icons/mail-16.png                       (icons/mail-16.png)
      skin/classic/messenger/icons/mail-options.png                  (icons/mail-options.png)
      skin/classic/messenger/icons/mail-toolbar-small.png            (icons/mail-toolbar-small.png)
      skin/classic/messenger/icons/mail-toolbar.png                  (icons/mail-toolbar.png)
+     skin/classic/messenger/icons/mail-replylist-small.png          (icons/mail-replylist-small.png)
+     skin/classic/messenger/icons/mail-replylist.png                (icons/mail-replylist.png)
      skin/classic/messenger/icons/mailPaneConfig.png                (icons/mailPaneConfig.png)
      skin/classic/messenger/icons/message-mail-attach-offl.png      (icons/message-mail-attach-offl.png)
      skin/classic/messenger/icons/message-mail-attach.png           (icons/message-mail-attach.png)
      skin/classic/messenger/icons/message-mail-imapdel-offl.png     (icons/message-mail-imapdel-offl.png)
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/themes/pinstripe/mail/primaryToolbar.css thunderbird-1.5.0.5+reply-list/mozilla/mail/themes/pinstripe/mail/primaryToolbar.css
--- thunderbird-1.5.0.5/mozilla/mail/themes/pinstripe/mail/primaryToolbar.css	2005-06-16 03:32:12.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/themes/pinstripe/mail/primaryToolbar.css	2006-07-27 10:20:48.965190813 +0100
@@ -124,8 +124,23 @@
 #button-reply[disabled] {
   -moz-image-region: rect(64px 128px 96px 96px) !important;
 } 
 
+#button-replyList {
+  -moz-box-orient: vertical;
+  min-width: 0px;
+  list-style-image: url("chrome://messenger/skin/icons/mail-replylist.png");
+  -moz-image-region: rect(0px 32px 32px 0px);
+}
+
+#button-replyList:hover:active {
+  -moz-image-region: rect(32px 32px 64px 0px);
+} 
+
+#button-replyList[disabled] {
+  -moz-image-region: rect(64px 32px 96px 0px) !important;
+} 
+
 #button-replyall {
   -moz-image-region: rect(0px 160px 32px 128px);
 }
 
@@ -305,8 +320,23 @@
 toolbar[iconsize="small"] #button-reply[disabled] {
   -moz-image-region: rect(48px 96px 72px 72px) !important;
 } 
 
+toolbar[iconsize="small"] #button-replyList {
+  -moz-box-orient: vertical;
+  min-width: 0px;
+  list-style-image: url("chrome://messenger/skin/icons/mail-replylist-small.png");
+  -moz-image-region: rect(0px 24px 24px 0px);
+}
+
+toolbar[iconsize="small"] #button-replyList:hover:active {
+  -moz-image-region: rect(24px 24px 48px 0px);
+} 
+
+toolbar[iconsize="small"] #button-replyList[disabled] {
+  -moz-image-region: rect(48px 24px 72px 0px) !important;
+} 
+
 toolbar[iconsize="small"] #button-replyall {
   -moz-image-region: rect(0px 120px 24px 96px);
 }
 
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/themes/qute/mail/jar.mn thunderbird-1.5.0.5+reply-list/mozilla/mail/themes/qute/mail/jar.mn
--- thunderbird-1.5.0.5/mozilla/mail/themes/qute/mail/jar.mn	2005-08-04 23:14:30.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/themes/qute/mail/jar.mn	2006-07-27 18:00:21.352225429 +0100
@@ -72,8 +72,10 @@
     skin/classic/messenger/icons/new-mail-alert.png             (icons/new-mail-alert.png)
     skin/classic/messenger/icons/readmail.gif                   (icons/readmail.gif)
     skin/classic/messenger/icons/mail-toolbar.png               (icons/mail-toolbar.png)
     skin/classic/messenger/icons/mail-toolbar-small.png         (icons/mail-toolbar-small.png)
+    skin/classic/messenger/icons/mail-replylist.png             (icons/mail-replylist.png)
+    skin/classic/messenger/icons/mail-replylist-small.png       (icons/mail-replylist-small.png)
     skin/classic/messenger/icons/throbber.png                   (icons/throbber.png)
     skin/classic/messenger/icons/throbber.gif                   (icons/throbber.gif)
     skin/classic/messenger/icons/throbber-small.gif             (icons/throbber-small.gif)
     skin/classic/messenger/icons/throbber-small.png             (icons/throbber-small.png)
diff -U4 -r thunderbird-1.5.0.5/mozilla/mail/themes/qute/mail/primaryToolbar.css thunderbird-1.5.0.5+reply-list/mozilla/mail/themes/qute/mail/primaryToolbar.css
--- thunderbird-1.5.0.5/mozilla/mail/themes/qute/mail/primaryToolbar.css	2005-10-15 01:48:25.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mail/themes/qute/mail/primaryToolbar.css	2006-07-27 10:20:49.032178810 +0100
@@ -51,12 +51,20 @@
 .toolbarbutton-1[type="menu"] > .toolbarbutton-menu-dropmarker {
   display: none;
 }
 
+.toolbarbutton-2[type="menu"] > .toolbarbutton-menu-dropmarker {
+  display: none;
+}
+
 toolbar[mode="full"] .toolbarbutton-1 {
   min-width: 47px;
 }
 
+toolbar[mode="full"] .toolbarbutton-2 {
+  min-width: 47px;
+}
+
 toolbar[mode="icons"] .toolbarbutton-text {
   display: none;
 }
 
@@ -116,8 +124,23 @@
 #button-reply[disabled] {
   -moz-image-region: rect(48px 96px 72px 72px) !important;
 } 
 
+#button-replyList {
+  -moz-box-orient: vertical;
+  min-width: 0px;
+  list-style-image: url("chrome://messenger/skin/icons/mail-replylist.png");
+  -moz-image-region: rect(0px 24px 24px 0px);
+}
+
+#button-replyList:hover {
+  -moz-image-region: rect(24px 24px 48px 0px);
+} 
+
+#button-replyList[disabled] {
+  -moz-image-region: rect(48px 24px 72px 0px) !important;
+} 
+
 #button-replyall {
   -moz-image-region: rect(0px 120px 24px 96px);
 }
 
@@ -292,8 +315,23 @@
 toolbar[iconsize="small"] #button-reply[disabled] {
   -moz-image-region: rect(32px 64px 48px 48px) !important;
 } 
 
+toolbar[iconsize="small"] #button-replyList {
+  -moz-box-orient: vertical;
+  min-width: 0px;
+  list-style-image: url("chrome://messenger/skin/icons/mail-replylist-small.png");
+  -moz-image-region: rect(0px 16px 16px 0px);
+}
+
+toolbar[iconsize="small"] #button-replyList:hover {
+  -moz-image-region: rect(16px 16px 32px 0px);
+} 
+
+toolbar[iconsize="small"] #button-replyList[disabled] {
+  -moz-image-region: rect(32px 16px 48px 0px) !important;
+} 
+
 toolbar[iconsize="small"] #button-replyall {
   -moz-image-region: rect(0px 80px 16px 64px);
 }
 
diff -U4 -r thunderbird-1.5.0.5/mozilla/mailnews/compose/public/nsIMsgComposeParams.idl thunderbird-1.5.0.5+reply-list/mozilla/mailnews/compose/public/nsIMsgComposeParams.idl
--- thunderbird-1.5.0.5/mozilla/mailnews/compose/public/nsIMsgComposeParams.idl	2005-10-04 04:10:45.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mailnews/compose/public/nsIMsgComposeParams.idl	2006-07-27 10:20:49.034178451 +0100
@@ -58,8 +58,9 @@
     const long Draft                    = 9;
     const long Template                 = 10;
     const long MailToUrl                = 11;
     const long ReplyWithTemplate        = 12;
+    const long ReplyToList              = 13;
 };
 
 
 typedef long MSG_ComposeFormat;
diff -U4 -r thunderbird-1.5.0.5/mozilla/mailnews/compose/src/nsMsgCompose.cpp thunderbird-1.5.0.5+reply-list/mozilla/mailnews/compose/src/nsMsgCompose.cpp
--- thunderbird-1.5.0.5/mozilla/mailnews/compose/src/nsMsgCompose.cpp	2006-06-21 00:52:53.000000000 +0100
+++ thunderbird-1.5.0.5+reply-list/mozilla/mailnews/compose/src/nsMsgCompose.cpp	2006-08-19 13:37:50.135832130 +0100
@@ -1711,8 +1711,9 @@
       switch (type)
       {
         default: break;
         case nsIMsgCompType::Reply :
+        case nsIMsgCompType::ReplyToList:
         case nsIMsgCompType::ReplyAll:
         case nsIMsgCompType::ReplyToGroup:
         case nsIMsgCompType::ReplyToSender:
         case nsIMsgCompType::ReplyToSenderAndGroup:
@@ -2082,8 +2083,9 @@
     if (!mCiteReference.IsEmpty())
       compose->SetCiteReference(mCiteReference);
 
     if (mHeaders && (type == nsIMsgCompType::Reply || type == nsIMsgCompType::ReplyAll || type == nsIMsgCompType::ReplyToSender ||
+                     type == nsIMsgCompType::ReplyToList ||
                      type == nsIMsgCompType::ReplyToGroup || type == nsIMsgCompType::ReplyToSenderAndGroup) && mQuoteOriginal)
     {
       nsCOMPtr<nsIMsgCompFields> compFields;
       compose->GetCompFields(getter_AddRefs(compFields));
@@ -2094,8 +2096,9 @@
         nsAutoString cc;
         nsAutoString replyTo;
         nsAutoString mailReplyTo;
         nsAutoString mailFollowupTo;
+        nsAutoString listPost;
         nsAutoString newgroups;
         nsAutoString followUpTo;
         nsAutoString messageId;
         nsAutoString references;
@@ -2108,8 +2111,73 @@
         }
         nsXPIDLCString charset;
         compFields->GetCharacterSet(getter_Copies(charset));
         
+        mHeaders->ExtractHeader(HEADER_REPLY_TO, PR_FALSE, getter_Copies(outCString));
+        if (outCString)
+        {
+          mMimeConverter->DecodeMimeHeader(outCString, replyTo, charset);
+        }
+        
+        mHeaders->ExtractHeader(HEADER_MAIL_REPLY_TO, PR_TRUE, getter_Copies(outCString));
+        if (outCString)
+        {
+          mMimeConverter->DecodeMimeHeader(outCString, mailReplyTo, charset);
+        }
+
+        if (type == nsIMsgCompType::ReplyToList)
+        {
+          nsAutoString tmpListPost;
+          PRBool listPostOk = PR_FALSE;
+
+          mHeaders->ExtractHeader(HEADER_LIST_POST, PR_TRUE, getter_Copies(outCString));
+          if (outCString)
+          {
+            mMimeConverter->DecodeMimeHeader(outCString, tmpListPost, charset);
+            if (! tmpListPost.IsEmpty() && StringBeginsWith(tmpListPost, NS_LITERAL_STRING("<mailto:"))) {
+              int pos = 0;
+              nsString::const_iterator substr_start, substr_end;
+              tmpListPost.BeginReading(substr_start);
+              tmpListPost.EndReading(substr_end);
+              while (substr_start != substr_end) {
+                // find the : and start copying (the string has to start "<mailto:")
+                if (pos == 0 && *substr_start == ':') pos++;
+                // stop copying at the >
+                else if (pos == 1 && *substr_start == '>') pos++;
+                else if (pos == 1) listPost += *substr_start;
+                substr_start++;
+              }
+              if (pos == 2) listPostOk = PR_TRUE;
+            }
+          }
+
+          mHeaders->ExtractHeader(HEADER_MAIL_FOLLOWUP_TO, PR_TRUE, getter_Copies(outCString));
+          if (outCString)
+          {
+            mMimeConverter->DecodeMimeHeader(outCString, mailFollowupTo, charset);
+          }
+          
+          if (listPostOk && ! listPost.IsEmpty())
+          {
+            compFields->SetTo(listPost);
+
+            if (! mailFollowupTo.IsEmpty())
+            { // handle Mail-Followup-To (http://cr.yp.to/proto/replyto.html)
+              compFields->SetCc(mailFollowupTo);
+            }
+          }
+          else if (! mailFollowupTo.IsEmpty())
+          {
+            type = nsIMsgCompType::ReplyAll;
+          }
+          else
+          {
+            type = nsIMsgCompType::Reply;
+          }
+
+          needToRemoveDup = PR_TRUE;
+        }
+
         if (type == nsIMsgCompType::ReplyAll)
         {
           mHeaders->ExtractHeader(HEADER_TO, PR_TRUE, getter_Copies(outCString));
           if (outCString)
@@ -2142,20 +2210,8 @@
           }
 
           needToRemoveDup = PR_TRUE;
         }
-              
-        mHeaders->ExtractHeader(HEADER_REPLY_TO, PR_FALSE, getter_Copies(outCString));
-        if (outCString)
-        {
-          mMimeConverter->DecodeMimeHeader(outCString, replyTo, charset);
-        }
-        
-        mHeaders->ExtractHeader(HEADER_MAIL_REPLY_TO, PR_TRUE, getter_Copies(outCString));
-        if (outCString)
-        {
-          mMimeConverter->DecodeMimeHeader(outCString, mailReplyTo, charset);
-        }
         
         mHeaders->ExtractHeader(HEADER_NEWSGROUPS, PR_FALSE, getter_Copies(outCString));
         if (outCString)
         {
@@ -2179,9 +2235,10 @@
         {
           mMimeConverter->DecodeMimeHeader(outCString, references, charset);
         }
         
-        if (! ((type == nsIMsgCompType::ReplyAll) && ! mailFollowupTo.IsEmpty()))
+        if (! ((type == nsIMsgCompType::ReplyAll) && ! mailFollowupTo.IsEmpty())
+            && ! (type == nsIMsgCompType::ReplyToList))
         {
           if (! mailReplyTo.IsEmpty())
           { // handle Mail-Reply-To (http://cr.yp.to/proto/replyto.html)
             compFields->SetTo(mailReplyTo);
diff -U4 -r thunderbird-1.5.0.5/mozilla/mailnews/mime/public/nsMailHeaders.h thunderbird-1.5.0.5+reply-list/mozilla/mailnews/mime/public/nsMailHeaders.h
--- thunderbird-1.5.0.5/mozilla/mailnews/mime/public/nsMailHeaders.h	2005-02-28 17:10:57.000000000 +0000
+++ thunderbird-1.5.0.5+reply-list/mozilla/mailnews/mime/public/nsMailHeaders.h	2006-07-27 10:20:49.174153320 +0100
@@ -62,12 +62,13 @@
 #define HEADER_DISTRIBUTION					        "Distribution"
 #define HEADER_FCC							            "FCC"
 #define HEADER_FOLLOWUP_TO					        "Followup-To"
 #define HEADER_FROM							            "From"
-#define HEADER_STATUS							            "Status"
+#define HEADER_STATUS							          "Status"
 #define HEADER_LINES						            "Lines"
+#define HEADER_LIST_POST						        "List-Post"
 #define HEADER_MAIL_FOLLOWUP_TO				      "Mail-Followup-To"
-#define HEADER_MAIL_REPLY_TO				       "Mail-Reply-To"
+#define HEADER_MAIL_REPLY_TO				        "Mail-Reply-To"
 #define HEADER_MESSAGE_ID					          "Message-ID"
 #define HEADER_MIME_VERSION					        "MIME-Version"
 #define HEADER_NEWSGROUPS					          "Newsgroups"
 #define HEADER_ORGANIZATION					        "Organization"