Should match:

simple@example.com​

very.common@example.com​

disposable.style.email.with+symbol@example.com​

other.email-with-hyphen@example.com​

fully-qualified-domain@example.com​

user.name+tag+sorting@example.com​

example-indeed@strange-example.com​

admin@mailserver1.tv​

example@s.example​

mailhost!username@example.org ​

user%example.com@example.org