In the email validator，the email’s max length is 64+1+255=320.

But the email’s max length is 256 in rfc 5321( 4.5.3.1.3) : https://datatracker.ietf.org/doc/html/rfc5321#section-4.5.3.1.3 ，Except for the angle brackets (<>) before and after the email address, the maximum length should be 254?