Character Limitations in an Email Address
Everyemail addressconsists of two parts.
The username comes before the @ sign, and the domain name follows it.
The total length of an email address in the original standard was 320 characters.
The standard limited the username to 64 characters and the domain name to 255 characters.
(If you’re doing the math, that adds up to 319.
The final character is the @ symbol in between.)
Just remember that the shorter the email address is, the easier it is for people to remember.
