Univention Bugzilla – Bug 45814
eMail-Addresses in IDN-Domains are not possible
Last modified: 2021-05-03 21:32:34 CEST
Since 2003 (IDNA2003; RFC 3490) special characters (like Umlauts) can be used in domain names. In 2008 (IDNA2008/IDNAbis; RFC 5890, RFC 5891, RFC 5892, RFC 5893, RFC 5894) the possibilities were even extended. By this a domain like 'rößlein.de' is possible. In UCS/UMC you can create such a maildomain but when trying to create a users mail-address - the local part is without special chars - you'll receive an error saying: "invalid syntax". I'm not sure if this is only an udm problem but from my point of view, openLDAP and bind9 are ok with IDN-domains. We should check postfix, samba/AD as well as udm so that UCS can handle these new abilities.
Created attachment 9295 [details] UDM/DNS also in the DNS section, UDM has problems to create the zone.
Created attachment 9296 [details] UDM/MailAddress UDM Error for PMA
There is somewhere a patch for this problem in another bug, which encodes the names in IDNA form.
*** Bug 15280 has been marked as a duplicate of this bug. ***
(In reply to Florian Best from comment #3) > There is somewhere a patch for this problem in another bug, which encodes > the names in IDNA form. I was referring to Bug #34948 - the patch is for the windows name, not for mail addresses.
It is a Feature Request. Currently, we don't support it.
Since IDN was introduced nearly 20 years ago - and IDN domains are used also by our customers - I absolutely do not see this as a feature request nowadays.
see also ttps://help.univention.com/t/idn-domain-not-possible/11587
OX allows creating such mail domains and UCS then fails in using these domains with umlauts. See (private) screenshot. Therefore, I consider this being a bug instead of a feature request. Customer affected.