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Merged idea

This idea has been merged into another idea. To comment or vote on this idea, please visit DOMINO-I-106 Support of internationalized domain names in Lotus Notes and Domino.

Support für Interneational Domains ("IDNA2008" specifications as RFC 5890 – 5894) Merged

Here in Germany there are more and more companies using Internet Domains containing there German company name including Umlauts (ÄÖÜ), like servus@gärtnerplatzalm.de


Domino "converts" servus@gärtnerplatzalm.de to:

=?ISO-8859-1?Q?servus=40g=E4rtnerplatzalm=2Ede?= <servus@g0xL184zrtnerplatzalm.de>

instead of the punnycode address (RFC3490)

We are facing issues with customers are not able to send mails to some endusers, who only having an Internetdomain with Umlaut. They are using Exchange and other communication partners are having no issues, besides of any Domino customer :-(

It would be important to be able to use extended Internet Domains containing Umlaute in mail adresses. Other mail systems can nowadays handle them correctly. The RFCs are more than 10 years old, so more and more customers are only rechable via International Domains.


Martin Garrels

Fiducia & GAD IT AG

  • Guest
  • Jun 21 2019
  • Likely to implement
  • Guest commented
    23 Jun, 2019 02:16pm

    It is a shame that it is still not supported.
    I know of one customer, who migrated to another mail system because of missing extended Internet Domains.