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/usr/share/kde4/config.kcfg/kmail.kcfg is in kmail 4:4.13.0-0ubuntu1.

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<?xml version="1.0" encoding="UTF-8"?>
<kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
      http://www.kde.org/standards/kcfg/1.0/kcfg.xsd" >
  <include>qtextcodec.h</include>
  <include>kglobalsettings.h</include>
  <include>kcolorscheme.h</include>
  <include>editor/composer.h</include>
  <include>messagecomposer/utils/util.h</include>
  <kcfgfile name="kmail2rc"/>
  <group name="Behaviour">
      <entry name="ActionEnterFolder"  type="Enum">
        <label></label>
        <whatsthis></whatsthis>
        <choices>
          <choice name="SelectFirstUnread"/>
          <choice name="SelectLastSelected"/>
          <choice name="SelectNewest"/>
          <choice name="SelectOldest"/>
        </choices>
        <default>SelectLastSelected</default>
      </entry>
      <entry name="NetworkState"  type="Enum">
        <choices>
          <choice name="Online"/>
          <choice name="Offline"/>
        </choices>
        <default>Online</default>
      </entry>
      <entry name="LoopOnGotoUnread"  type="Enum">
        <label></label>
        <whatsthis></whatsthis>
        <choices>
          <choice name="DontLoop"/>
          <choice name="LoopInCurrentFolder"/>
          <choice name="LoopInAllFolders"/>
          <choice name="LoopInAllMarkedFolders"/>
        </choices>
        <default>DontLoop</default>
      </entry>
      <entry name="ShowPopupAfterDnD"  type="Bool">
        <label></label>
        <whatsthis></whatsthis>
        <default>true</default>
      </entry>
      <entry name="ExcludeImportantMailFromExpiry"  type="Bool">
        <label></label>
        <whatsthis>This prevents the automatic expiry of old messages in a folder from deleting (or moving to an archive folder) the messages that are marked 'Important' or 'Action Item'</whatsthis>
        <default>true</default>
      </entry>
      <entry name="AllowLocalFlags" type="Bool">
        <label>Allow local flags in read-only folders</label>
        <default>false</default>
      </entry>


      <entry name="SendOnCheck"  type="Enum">
        <label>Send queued mail on mail check</label>
        <whatsthis>&lt;qt&gt;&lt;p&gt;Select whether you want KMail to send all messages in the outbox on manual or all mail checks, or whether you do not want messages to be sent automatically at all. &lt;/p&gt;&lt;/qt&gt;</whatsthis>
        <choices>
          <choice name="DontSendOnCheck"/>
          <choice name="SendOnManualChecks"/>
          <choice name="SendOnAllChecks"/>
        </choices>
        <default>DontSendOnCheck</default>
      </entry>
    </group>

    <group name="FolderSelectionDialog">
      <entry name="LastSelectedFolder" type="LongLong">
        <whatsthis>The most recently selected folder in the folder selection dialog.</whatsthis>
        <default>-1</default>
      </entry>

    </group>

    <group name="General">
      <entry name="WarnBeforeExpire" type="bool" key="warn-before-expire">
        <default>true</default>
      </entry>
      <entry name="SystemTrayEnabled" type="Bool">
        <label>Enable system tray icon</label>
        <default>false</default>
      </entry>
      <entry name="SystemTrayPolicy" type="Enum">
        <label>Policy for showing the system tray icon</label>
        <choices>
          <choice name="ShowAlways"/>
          <choice name="ShowOnUnread"/>
        </choices>
        <default>ShowOnUnread</default>
      </entry>
      <entry name="SystemTrayShowUnread" type="Bool">
        <label>Show unread mail in system tray</label>
        <default>true</default>
      </entry>
      <entry name="CloseDespiteSystemTray" type="Bool">
          <label>Close the application when the main window is closed, even if there is a system tray icon active.</label>
        <default>false</default>
      </entry>
      <entry name="ExternalEditor" type="String" key="external-editor">
        <label>Specify e&amp;ditor:</label>
        <default>kwrite %f</default>
      </entry>
      <entry name="UseExternalEditor" type="Bool" key="use-external-editor">
        <label>Use e&amp;xternal editor instead of composer</label>
        <default>false</default>
      </entry>
      <entry name="CustomMessageHeadersCount" type="Int" key="mime-header-count">
        <label>Specifies the number of custom MIME header fields to be inserted in messages (for internal use only)</label>
      </entry>
      <entry name="CloseToQuotaThreshold" type="Int">
        <label>The threshold for when to warn the user that a folder is nearing its quota limit.</label>
         <default>80</default>
      </entry>
      <entry name="EmptyTrashOnExit" type="Bool" key="empty-trash-on-exit">
        <label>Empty the local trash folder on program exit</label>
        <default>false</default>
      </entry>
      <entry name="StartSpecificFolderAtStartup" type="Bool" key="startSpecificFolderAtStatup">
        <label>Allow to start specific folder</label>
        <default>true</default>
      </entry>
      <entry name="StartupFolder" type="LongLong" key="startupFolder">
        <label>Specify the folder to open when the program is started</label>
        <default>-1</default>
      </entry>
      <entry name="ConfirmBeforeEmpty" type="Bool" key="confirm-before-empty">
        <label>Ask for confirmation before moving all messages to trash</label>
        <default>true</default>
      </entry>
      <entry name="AutoExpiring" type="Bool" key="auto-expiring">
        <label>Specifies whether the folders will expire in the background (for internal use only)</label>
        <default>true</default>
      </entry>
      <entry name="FirstStart" type="Bool" key="first-start">
        <label>Specifies whether this is the very first time that the application is run (for internal use only)</label>
        <default>true</default>
      </entry>
      <entry name="PreviousVersion" type="String" key="previous-version">
        <label>Specifies the version of the application that was last used (for internal use only)</label>
        <default code="true">QLatin1String(KDEPIM_VERSION)</default>
      </entry>
      <entry key="ShowMenuBar" type="Bool">
        <default>true</default>
         <!-- label and whatsthis are already provided by KStandardAction::showMenubar -->
        <label></label>
        <whatsthis></whatsthis>
      </entry>
    </group>
<!-- General -->


    <group name="Internal">
      <entry name="PreviousNewFeaturesMD5" type="String" hidden="true">
        <whatsthis>This value is used to decide whether the KMail Introduction should be displayed.</whatsthis>
        <default></default>
      </entry>
    </group>


    <group name="UserInterface">
      <entry name="EnableFolderQuickSearch" type="Bool">
        <label>Show folder quick search line edit</label>
        <default>false</default>
      </entry>
      <!-- <entry name="HideLocalInbox" type="Bool">
        <label>Hide local inbox if unused</label>
        <default>true</default>
      </entry> -->
    </group>

    <group name="Composer">
      <entry name="ForwardingInlineByDefault" type="Bool">
        <default>false</default>
        <label>Forward Inline As Default.</label>
      </entry>
      <entry name="StickyIdentity" type="Bool" key="sticky-identity">
        <whatsthis>Remember this identity, so that it will be used in future composer windows as well.
        </whatsthis>
        <default>false</default>
      </entry>
      <entry name="StickyFcc" type="Bool" key="sticky-fcc">
        <whatsthis>Remember this folder for sent items, so that it will be used in future composer windows as well.</whatsthis>
        <default>false</default>
      </entry>
      <entry name="StickyTransport" type="Bool" key="sticky-transport">
        <whatsthis>Remember this mail transport, so that it will be used in future composer windows as well.</whatsthis>
        <default>false</default>
      </entry>
      <entry name="StickyDictionary" type="Bool">
        <whatsthis>Remember this dictionary, so that it will be used in future composer windows as well.
        </whatsthis>
        <default>false</default>
      </entry>
       <entry name="TooManyRecipients" type="Bool" key="too-many-recipients">
        <label>Warn if the number of recipients is more than:</label>
        <default>false</default>
        <whatsthis>If the number of recipients is larger than this value, KMail will warn and ask for a confirmation before sending the mail. The warning can be turned off.</whatsthis>
      </entry>
      <entry name="RecipientThreshold" type="Int" key="recipient-threshold">
        <label></label>
        <default>5</default>
        <min>1</min>
        <max>100</max>
        <whatsthis>If the number of recipients is larger than this value, KMail will warn and ask for a confirmation before sending the mail. The warning can be turned off.</whatsthis>
     </entry>
     <entry name="PreviousIdentity" type="UInt" key="previous-identity" />
      <entry name="PreviousFcc" type="String" key="previous-fcc" />
      <entry name="PreviousDictionary" type="String" />
      <entry name="CurrentTransport" type="String" key="current-transport" />
      <entry name="UseHtmlMarkup" type="Bool" key="html-markup">
        <default>false</default>
      </entry>
      <entry name="NeverEncryptDrafts" type="Bool" key="never-encrypt-drafts">
        <default>true</default>
      </entry>

      <entry name="ChiasmusKey" type="String" key="chiasmus-key">
      </entry>
      <entry name="ChiasmusOptions" type="String" key="chiasmus-options">
      </entry>

      <entry name="ConfirmBeforeSend" type="Bool" key="confirm-before-send">
        <label>Confirm &amp;before send</label>
        <default>false</default>
      </entry>
      <entry name="CheckSpellingBeforeSend" type="Bool" key="check-spelling-before-send">
      <label>Check spelling before send</label>
        <default>false</default>
      </entry>
      <entry name="RequestMDN" type="Bool" key="request-mdn">
        <label>Automatically request &amp;message disposition notifications</label>
        <whatsthis>&lt;qt&gt;&lt;p&gt;Enable this option if you want KMail to request Message Disposition Notifications (MDNs) for each of your outgoing messages.&lt;/p&gt;&lt;p&gt;This option only affects the default; you can still enable or disable MDN requesting on a per-message basis in the composer, menu item &lt;em&gt;Options&lt;/em&gt;-&gt;&lt;em&gt;Request Disposition Notification&lt;/em&gt;.&lt;/p&gt;&lt;/qt&gt;</whatsthis>
        <default>false</default>
      </entry>
      <entry name="Headers" type="Int" key="headers">
        <default>KMail::Composer::HDR_SUBJECT</default>
      </entry>
      <entry name="CompletionMode" type="Int" key="Completion Mode">
        <default code="true">KGlobalSettings::completionMode()</default>
      </entry>
      <entry name="AutoSpellChecking" type="Bool" key="autoSpellChecking">
        <default>true</default>
      </entry>
      <entry name="ShowForgottenAttachmentWarning" type="Bool" key="showForgottenAttachmentWarning">
        <default>true</default>
      </entry>
      <entry name="AttachmentKeywords" type="StringList" key="attachment-keywords">
        <default code="true">
        MessageComposer::Util::AttachmentKeywords()
        </default>
      </entry>

      <entry name="AutosaveInterval" type="Int" key="autosave">
        <label>Autosave interval:</label>
        <whatsthis>A backup copy of the text in the composer window can be created regularly. The interval used to create the backups is set here. You can disable autosaving by setting it to the value 0.</whatsthis>
        <default>2</default>
      </entry>

      <entry name="CustomTemplates" type="StringList" key="CustomTemplates" />


      <entry name="FolderLoadingTimeout" type="Int" hidden="true">
         <default>1000</default>
      </entry>

      <entry name="ShowSnippetManager" type="Bool">
          <label>Show the Text Snippet Management and Insertion Panel in the composer.</label>
          <default>false</default>
      </entry>
      <entry name="SnippetSplitterPosition" type="IntList"/>

      <entry name="CryptoShowEncryptionResult" type="Bool" key="crypto-show-encryption-result">
        <label>Show signed/encrypted text after composing</label>
        <default>true</default>
      </entry>
      <entry name="CryptoStoreEncrypted" type="Bool" key="crypto-store-encrypted">
        <label>When check, sent messages will be stored in the encrypted form</label>
        <default>true</default>
      </entry>
      <entry name="RecentUrls" type="StringList" key="recent-urls">
        <label>A list of all the recently used URLs</label>
        <default code="true">
        QStringList()
        </default>
      </entry>
      <entry name="RecentEncodings" type="StringList" key="recent-encoding">
        <label>A list of all the recently used encodings</label>
        <default code="true">
        QStringList()
        </default>
      </entry>
    </group>
<!-- Composer -->

    <group name="Fonts">
      <entry name="ComposerFont" type="Font" key="composer-font">
        <default code="true">KGlobalSettings::generalFont()</default>
      </entry>
    </group>

    <group name="Geometry">
      <entry name="ComposerSize" type="Size" key="composer">
        <default>QSize(480,510)</default>
      </entry>
      <entry name="FilterDialogSize" type="Size" key="filterDialogSize">
        <label>The size of the filter dialog (for internal use only)</label>
        <default>QSize()</default>
      </entry>
      <entry name="IdentityDialogSize" type="Size" key="Identity Dialog size">
        <label>The size of the identity dialog (for internal use only)</label>
        <default>QSize()</default>
      </entry>
      <entry name="SearchWidgetWidth" type="Int">
        <label>The width of the search window (for internal use only)</label>
        <default>0</default>
      </entry>
      <entry name="SearchWidgetHeight" type="Int">
        <label>The height of the search window (for internal use only)</label>
        <default>0</default>
      </entry>
      <entry name="ConfigureDialogWidth" type="Int">
        <label>The width of the Configure KMail dialog (for internal use only)</label>
        <default>0</default>
      </entry>
      <entry name="ConfigureDialogHeight" type="Int">
        <label>The height of the Configure KMail dialog (for internal use only)</label>
        <default>0</default>
      </entry>
      <entry name="FolderViewWidth" type="Int">
        <default>250</default>
      </entry>
      <entry name="FolderViewHeight" type="Int">
        <default>500</default>
      </entry>
      <entry name="FolderTreeHeight" type="Int">
        <default>400</default>
      </entry>
      <entry name="SearchAndHeaderHeight" type="Int">
        <default>180</default>
      </entry>
      <entry name="SearchAndHeaderWidth" type="Int">
        <default>450</default>
      </entry>
      <entry name="ReaderWindowWidth" type="Int">
        <default>200</default>
      </entry>
      <entry name="ReaderWindowHeight" type="Int">
        <default>320</default>
      </entry>

      <entry name="readerWindowMode" type="Enum">
       <label>Message Preview Pane</label>
       <choices>
         <choice name="hide">
           <label>Do not show a message preview pane</label>
         </choice>
         <choice name="below">
           <label>Show the message preview pane below the message list</label>
         </choice>
         <choice name="right">
           <label>Show the message preview pane next to the message list</label>
         </choice>
       </choices>
       <default>below</default>
      </entry>

      <entry name="FolderList" type="Enum">
       <label>Folder List</label>
       <choices>
         <choice name="longlist">
           <label>Long folder list</label>
         </choice>
         <choice name="shortlist">
           <label>Short folder list</label>
         </choice>
       </choices>
       <default>longlist</default>
      </entry>
    </group>

    <group name="Reader">
     <entry name="CloseAfterReplyOrForward" type="Bool">
       <label>Close message window after replying or forwarding</label>
       <default>false</default>
     </entry>
    </group>

    <group name="MDN">
      <entry name="SendMDNsWithEmptySender" type="Bool">
        <default>false</default>
        <label>Send Message Disposition Notifications with an empty sender.</label>
        <whatsthis>Send Message Disposition Notifications with an empty sender string. Some servers might be configure to reject such messages, so if you are experiencing problems sending MDNs, uncheck this option.</whatsthis>
      </entry>
    </group>

  <group name="GlobalTemplates">
    <entry name="TemplateNewMessage" type="String" key="TemplateNewMessage">
      <label>Message template for new message</label>
      <whatsthis></whatsthis>
      <default code="true">TemplateParser::DefaultTemplates::defaultNewMessage()</default>
    </entry>
    <entry name="TemplateReply" type="String" key="TemplateReply">
      <label>Message template for reply</label>
      <whatsthis></whatsthis>
      <default code="true">TemplateParser::DefaultTemplates::defaultReply()</default>
    </entry>
    <entry name="TemplateReplyAll" type="String" key="TemplateReplyAll">
      <label>Message template for reply to all</label>
      <whatsthis></whatsthis>
      <default code="true">TemplateParser::DefaultTemplates::defaultReplyAll()</default>
    </entry>
    <entry name="TemplateForward" type="String" key="TemplateForward">
      <label>Message template for forward</label>
      <whatsthis></whatsthis>
      <default code="true">TemplateParser::DefaultTemplates::defaultForward()</default>
    </entry>
    <entry name="QuoteString" type="String" key="QuoteString">
      <label>Quote characters</label>
      <whatsthis></whatsthis>
      <default code="true">TemplateParser::DefaultTemplates::defaultQuoteString()</default>
    </entry>
  </group>

 <group name="Search">
   <entry name="LastSearchCollectionId" type="LongLong">
     <default>-1</default>
   </entry>
 </group>

 <!-- Startup settings -->
 <group name="Startup">
   <entry name="UpdateLevel" type="Int" key="update-level">
     <label>Specifies the number of updates to perform (for internal use only)</label>
     <default>0</default>
   </entry>
 </group>
 <!-- Main Folder View settings -->
 <group name="MainFolderView">
    <entry name="ToolTipDisplayPolicy" type="Int">
      <label>Specifies the policy used when displaying policy</label>
      <default>0</default>
    </entry>
 </group>

 <!-- Search Dialog settings -->
 <group name="SearchDialog">
   <entry name="CollectionWidth" type="Int">
     <label>Specifies the width of the collection field in the Search Window dialog (for internal use only)</label>
     <default>150</default>
   </entry>
   <entry name="SubjectWidth" type="Int">
     <label>Specifies the width of the subject field in the Search Window dialog (for internal use only)</label>
     <default>150</default>
   </entry>
   <entry name="SenderWidth" type="Int">
     <label>Specifies the width of the sender field in the Search Window dialog (for internal use only)</label>
     <default>120</default>
   </entry>
   <entry name="ReceiverWidth" type="Int">
     <label>Specifies the width of the receiver field in the Search Window dialog (for internal use only)</label>
     <default>120</default>
   </entry>
   <entry name="DateWidth" type="Int">
     <label>Specifies the width of the date field in the Search Window dialog (for internal use only)</label>
     <default>120</default>
   </entry>
   <entry name="FolderWidth" type="Int">
     <label>Specifies the width of the folder field in the Search Window dialog (for internal use only)</label>
     <default>100</default>
   </entry>
 </group>
</kcfg>