On 03-07-2026 03:04, John R. Levine via Postfix-users wrote:
The receiver claims that he receives mail from other people using the
IDN version.
Honestly, I'm sceptical. My guess is that the other people have the
A-label version of the address in their address book, and his mail
program doesn't show him the address in incoming mail.
I have done a lot of EAI related work for ICANN and I can tell you
that using IDN mail addresses is one of those things that is supposed
to work but is painful in practice. A lot of software almost but not
quite implements it, as we saw here. Postfix support is fine (one of
the things I did was to test it and it got a gold star) but you have
to turn it on.
By turning on, do you mean for incoming mails?
A search tell me that postfix has it turned on by default.
postconf show this:
smtputf8_autodetect_classes = sendmail, verify
smtputf8_enable = ${{$compatibility_level} <level {1} ? {no} : {yes}}
If I'm not mistaken, my server did work for this outgoing e-mail, right?
OR...??
I have noted the warning about enabling it, and I have no plans for
hosting any of these domains myself, but will do my best to make my
users happy.
--
Med venlig hilsen/Kind regards
Danjel Jungersen
Mail: [email protected]
Mobile: +45 20 42 20 11
Jungersen Grafisk ApS,
Holsbjergvej 39, DK-2620 Albertslund,
Denmark.
Tel: +45 43 64 10 00
WEBSHOP: PRINTLIGHT.DK <https://www.printlight.dk> | WWW.JUNGERSEN.DK
<https://www.jungersen.dk>
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