In a DLP Cloud service environment WSS + DLP, incidents snapshot shows user name / sender as 'NA'.
Due to which lookup plugin pulls incorrect attributes from AD.
NA
WSS fetch user information from Active Directory, which is transferred to DLP as ICAP header, DLP process headers in below order.
"X-SYMC-User-Email-Address"
"X-SYMC-Authenticated-User"
"X-Authenticated-User"
DLP checks first for email address in header sent by proxy, if email address is blank DLP skips email and look for info in 'X-SYMC-Authenticated-User' or 'X-Authenticated-User'.
Email address for the effected user in AD was mentioned as 'NA' due to this DLP incident captured 'NA' as this was not a blank value.
Make sure correct email address is added on AD in 'email' field as highlighted below, for all the users.