Domains with special characters ü,ö etc do not work.

I have a domain containing special characters in hungarian language ü and ö.

My user name is my email address explicitly with these characters. My email provider does not accept the Punycode version as user name.

I can not get my emails with emClient, because it does not connect to my email account.

miércoles 04 febrero 2026 :: 1140hrs (UTC +0100)

Hey @Hunnenkoenig

T do not completely understand.
How is your user name being converted to Punycode (ASCII)?
This is normally accepted for DNS - hostnames
What settings do you use in eMC?
Who is your ISP?

skybat

¡Buena suerte!

¡Saludos desde Sevilla la soleada en España!
¡Mis mejores deseos y mantente a salvo!

[email protected]

Hablo español, luego portugués, inglés, francés y alemán

My domain is bütykölde.hu

email address is kapcsolat@bütykölde.hu

The domain is with rackhost.hu

The server is on Hetzner and for my server being able to send and receive emails, I had to create the DNS entries, but Hetzner does not allow the name bütykölde. It has to be entered as
“xn–btyklde-d1a4c.hu”

My MX records on Hetzner are

@

10 mx05.rackhost.hu. 3600

20 alt2-mx.rackhostmx.com. 3600

MX records on Rackhost are

|bütykölde.hu|mx05.rackhost.hu|10|3600||

|bütykölde.hu|alt2-mx.rackhostmx.com|20|3600||

emClient says “server says: not valid username or password”

No matter if I add the username as bütykölde, or the other version

It works on Postbox client, the one that was purchased by emClient

miércoles 04 febrero 2026 :: 2330hrs (UTC +0100)

Hey @

As you have come from POSTBOX that worked for you
I suggest you follow this link for assistance.

(eM Client guide for Postbox users | eM Client)

skybat

¡Buena suerte!

¡Saludos desde Sevilla la soleada en España!
¡Mis mejores deseos y mantente a salvo!

[email protected]

Hablo español, luego portugués, inglés, francés y alemán