Received:
The portal has received a new registration:
https://albedo2.dkrz.de/esgcet/ac/root/lookupUser.htm?identifier=514e4e3f-f3bb-4425-ac1c-08f9ee648a1b&gatewayName=ESG-WDCC2

If used the logs show:
java.lang.NullPointerException
        at org.safehaus.uuid.UUID.<init>(Unknown Source)
        at org.safehaus.uuid.UUID.valueOf(Unknown Source)
        at sgf.gateway.web.controllers.security.AccessDeniedController.handleRequestInternal(AccessDeniedController.java:61)
        at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
...

Previously the user name was displayed. Sending this makes no sense as there's no info on the user.
It would be better to wither send some more user info (name & surname, affiliation, etc) or just one mail per day (or week) accounting how man new users have registered (if +1)