Enable different email domain.
Some instances (mine) manage multiple domains, it would be useful be able to provide email addresses on every domain. We need to be able to
- Choose which domains are allowed for email addresses;
- Restrict domains to given groups. I guess that using the
can_view
of a domain is sufficient, that is adding users to a club that owns the domain. For users that do not belong to a club we only allow the default domain.