% Dot IE domain names must:

-be less than 66 characters in length, including the '.ie' characters

-not start with a hyphen '-'

-not have a label ending in a hyphen before the '.ie' e.g. 'xyz-.ie'

-not start with 'xn--' which is reserved for IDN usage, e.g. ?ire.ie

-contain at least 5 characters, including the three for '.ie'

-have at least one alphabetic character, e.g. ' would be invalid'