Am 04.10.2014 um 22:49 schrieb Ronald F. Guilmette:
These days, whenever one builds any kind of tool that does
anything with e-mail, it is necessary to think about this
new-fangled phenomenon of Internationalized Domain Names,
so...
In what (if any) mail headers generated by Postfix might one
reasonably expect to find either (a) "punycoded" domain names
or else (b) Unicode characters.
And of course, I have the same two questions with respect to
the requests that are sent from Postfix to any installed and
activated policy server. Within that stuff, where might one
expect to see either (a) punycode or else (b) Unicode?
just use punnycode wherever you define domain names in
context of sevrer configurations (DNS, Mail, Webservers)
in case of DNS nothing else exists, so punnycide works behind the scenes
in case of domains names and whatever some client shows in the display
is a translation - frankly there where times where as example firefox
accepted unicode input but in fact displayed the punnycode to make clear
a sign looking like a "o" in a domain is not the same as "o" in reality
(attackers / phishers are creative in register domains looking like a
well known one in the address bar but only looking so)
