diff --git a/policy/protocols/smtp/webmail-ident.bro b/policy/protocols/smtp/webmail-ident.bro
index d5d563dfb2..bf4af0010d 100644
--- a/policy/protocols/smtp/webmail-ident.bro
+++ b/policy/protocols/smtp/webmail-ident.bro
@@ -26,7 +26,8 @@ export {
 	                   | /^Sun Java\(tm\) System Messenger Express/
 	                   | /\(IMP\)/  # Horde Internet Messaging Program
 	                   | /^SquirrelMail/
-	                   | /^NeoMail/ &redef;
+	                   | /^NeoMail/ 
+	                   | /ZimbraWebClient/ &redef;
 }