email@example.com
firstname.lastname@example.com
firstname+lastname@example.com
1234567890@example.com
email@example-one.com
a______@example.com
email..email@example.com

email@example.name
email@subdomain.example.com
plainaddress
#@%^%#$@#$@#.com
@example.com
email.example.com
email@example@example.com
.email@example.com
email@example.museum
email@example
email@111.222.333.44444
email@example..com