Should have been clearer. Preferably, you should use your own domain (atleast for signing up). Or use something like Tutanota [0], only for signing up for stu

Should have been clearer. Preferably, you should use your own domain (atleast for signing up). Or use something like Tutanota [0], only for signing up for stuff. They have a very generous free plan. You should open it only to verify new accounts, and for 'forgot password' links. [0]- https://tutanota.com https://tutanota.com