sum() of aggregate count()?

I have a query where I pull the domain portion from email addresses out of a column and then count how many users from which domain I have. How do I get the total count (all users over all domains) in the same query?

select count(regexp_replace( email_id , '^[^@]+@','')) as count, regexp_replace( email_id , '^[^@]+@','') as domain from logins 
  where last_login between '2024-08-06' and '2024-09-06'  
  group by regexp_replace( email_id , '^[^@]+@','') 
  order by count;