On 2023-04-06 09:32, Sean Gallagher via Postfix-users wrote:
From reading the code, these two restrictions seem equivalent except
when SMTPUTF8 extension is used.
when the SMTPUTF8 is in play, reject_non_fqdn_helo_hostname will
convert a hostname containing UTF to an internationalized domain name
before checking.
https://en.wikipedia.org/wiki/Internationalized_domain_name
I agree with you.
for instance, 腾讯.公司 is a invalid hostname, but it is a fqdn hostname
which will pass the check by the second clause.
--
https://kenpeng.pages.dev/
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