register esa.ch

    	Whatever you do under the esa.XX domain, postmaster at esa.XX
    	*must* be a valid address.
    Who tells ?  Just because it's a domain name it need not
    be a valid (domain part of a) mail address - unless there
    is an MX.
At least under .NL it is a hard requirement that
postmaster at domain.nl be a valid address.

    Have you ever tried postmaster at ac.uk ?
ac.XX, co.XX, etc. are artifacts, not domains;
the real domains go one level lower.
    
    	Crazy idea: if company X moves from Cologne to Darmstadt,
    	its domain name would change, they would have to reprint
    	their letter heads, business cards, etc., and someone would
    	have to cope with all the bounces of mails sent to the old
    	domain name...
    Totally correct. If the company moves, they will have to
    change their business cards, letter heads ...
PTT's take care of forwarding letters. Who is going
to take care of forwarding e-mail?


	Piet