Exchange 2010 deployment: Mobile devices are being reprovisioned

You could create a rule similar to this and attach it using the iRules option in the iApp:

when HTTP_REQUEST {
    set is_activesync 0
    switch -glob -- [string tolower [HTTP::path]] {
        "/microsoft-server-activesync*" {
            set is_activesync 1
            log local0. "Request:[HTTP::host][HTTP::uri]:[HTTP::header names]"
            foreach cookie [HTTP::cookie names] {
                log local0. "Cookie name: $cookie, Cookie value: [HTTP::cookie value $cookie]"
           }
            foreach aHeader [HTTP::header names] {
                log local0. "$aHeader: [HTTP::header value $aHeader]"
           }
        }
    }
}
when HTTP_RESPONSE {
    if { $is_activesync == 1 }  {
        log local0. "Response: [HTTP::status]:[HTTP::header names]"
        foreach cookie [HTTP::cookie names] {
          log local0. "Cookie name: $cookie, Cookie value: [HTTP::cookie value $cookie]"
       }
        foreach aHeader [HTTP::header names] {
          log local0. "$aHeader: [HTTP::header value $aHeader]"
       }
    }
    unset is_activesync
}