From Zimbra :: Wiki
com_zimbra_ymaps.xml
<zimlet name="com_zimbra_ymaps" version="1.0" description="Yahoo Maps">
<include>
http://api.maps.yahoo.com/ajaxymap?v=2.0&appid=ZimbraMail
</include>
<include>ymaps.js</include>
<includeCSS>ymaps.css</includeCSS>
<resource>blank_pixel.gif</resource>
<resource>ymaps.gif</resource>
<handlerObject>Com_Zimbra_YMaps</handlerObject>
<contentObject type="address">
<matchOn>
<regex attrs="ig">
[\w]{3,}([A-Za-z]\.)?([ \w]*\#\d+)?(\r\n|
)[\w]{3,}\x20[A-Za-z]{2}\x20\d{5}(-\d{4})?\b
</regex>
</matchOn>
<onClick>
<canvas type="window" />
<actionUrl target="http://maps.yahoo.com/beta/index.php"
paramStart="#">
<param name="maxp">search</param>
<param name="q1">${src.objectContent}</param>
</actionUrl>
</onClick>
</contentObject>
<zimletPanelItem label="Maps" icon="YMAPS-panelIcon">
<toolTipText>
Drag'n'drop a contact to display a Yahoo Map
</toolTipText>
<dragSource type="ZmContact" />
<contextMenu>
<menuItem label="Visit Yahoo Maps"
id="MAPS.YAHOO.COM"
icon="YMAPS-panelIcon">
<canvas type="window" width="800"
height="600" />
<actionUrl target="http://maps.yahoo.com">
<param name="referrer">
www.zimbra.com
</param>
</actionUrl>
</menuItem>
</contextMenu>
</zimletPanelItem>
</zimlet>