your variable &email=<%= cryptUrlAES() %> should be after <%= escapeUrl("$(urlId)") %>
try this
<% if( typeof strPurlTrackingServer!="undefined" && strPurlTrackingServer.toString() ) { %><%= strPurlTrackingServer %><% } else { %><%@ include option='NmsTracking_ServerUrl' %><% } %>/r/?id=<%=
type.substr(0, 1) + (message.id<0 ? (message.id+4294967296) : message.id).toString(16).toLowerCase()
%>,<%@ value object="delivery" xpath="@idTracking" %>,<%= escapeUrl("$(urlId)") %>&email=<%= cryptUrlAES() %>
<%
if (document.mode == "forward")
{
var d = message.getParameter("d")
if( d )
d = d.split(",")
%>&ap_visitorId=<%=message.getParameter("visitorId") != '' ? message.getParameter("visitorId"):0 %>&ap_category=<%= d[0]?d[0]:'' %>&ap_deliveryId=<%=d[1]?parseInt(d[1],16):0%><%
} %><%
if( typeof proposition != "undefined" && proposition.length == undefined )
{ %>&ap_oid=<%= proposition.offer.id %><%
} %>