Email Domain Name Max Length. In theory this subdivision can go down to 127 levels deep and each DNS label can contain up to 63 characters as long as the whole domain name does not exceed a total length of 255 characters. Each DNS mark must not surpass 63 characters and should comprise of any blend of alphabetic characters hyphens and digits.
If the name is available youre in luck. For more tips on name selection view our guide to choosing domain names or start your domain name search. Most people believe it to be 320 characters 64 characters for the username 255 characters for the domain 1 character for the symbol.
The email address length is 254 characters.
A domain name can be as long as 253 characters all told - but its rare that one is. Why is it rejecting this name that is under the limit. Thats an awfully long URL and we dont recommend choosing such a lengthy domain in any circumstances. 63 characters in the maximum length of a label part of domain name separated by dot.