Hi i have tried a simple search to get users which are not in certain domain , and it does not work
the expression is as follows
NOT email:*kenshoo.com - this returns all user from kenshoo domain
also i suggest that there will be more dashboard examples in the documentation -
all the fields are specified but a combination of negation and whildcards is not.
also general examples are missing - the explanation of normalized fields (vs what ?)
is not so clear .
Hello, thanks for your feedback.
I think you are looking for the query: NOT email.domain:*kenshoo.com which will search just the domain of the emails.
More details here: User Search Query Syntax
Would you mind to explain why simple email with wildcards would not work ?
Even though email is not listed in the Searchable Fields, you should be able to search via a query like this:
NOT email:*gmail.com*
This returned me all the non-gmail emails.
Thats weird i tried now and it works as expected. 
Glad to hear that @shlomiken!