HTML email, was Re: Phishing and BGP Blackholing

Back in the day, pre-CIRA, .CA was managed according to rules which
    included the restriction that a single company was only allowed one
    domain name. So, to choose a company at random, General Motors Canada
    was welcome to GMC.CA but they couldn't also register PONTIAC.CA or

Eons ago that was also the case in .NL
    I think that policy was good for the DNS, but it was apparently
    widely hated by everybody else, despite the fact that .CA names at
    that time were free. .CA is no longer managed according to such rules.

Same story here