An email address such as jane.doe@example.com identifies an email box to which example email messages are delivered by example . The universal standard for the format and meaning of an email address today is the modeli An email address such as John.Smith@adelphi.edu is made sample up of a local part, an @ symbol, then a domain part. The domain sample part is not case-sensitive, but local-parts may be. In practice, the mail system at example.com may choose to treat John.Smith as equivalent john.smith or even johnsmith.[1] Mail systems often and here are some samples: ibc@verizon.net email@example.com firstname.lastname@example.com firstname.lastname@example.com email@123.123.123.123 1234567890@example.com email@example-one.com email@example.museum email@example.museum firstname-lastname@example.com I hope this is a good example for you. you can find more names for adelhi and verizon.