Ldap attribute in pre-proxy possible?

[Mike]

Hello,

Is it possible store and access an ldap attribute in pre-proxy? 
1. Attribute defined in dictionary
2. Attribute mapped in ldap.attrmap
2. Trying to access using:

pre-proxy {
If (%{reply:attributename} == "cookies" {
update proxy-reply {
Whatever = "cookies"
}}
}

the problem is the attribute is expanding to nothing. This does work in the auth section but i need to update the proxy msg. What am i doing wrong?