German "umlaut" in email address

Handle German umlauts in email addresses within CF.

Overview

Some mail servers reject email addresses containing special characters like German umlauts (ä, ö, ü), which can cause sending errors.
Use the international Punycode encoding (xn-- format) for the email address in the form; many systems will automatically convert it back to the readable umlaut version upon delivery.

Answered
gc gcarne 11 Jan, 2016
Hi,
We have a German "umlaut" in our company email address info@logopädie-christ.de. The form cannot handle this and returns an error. I do not want to put in the international info@ xn--logopdie-christ-4kb.de which would work, but it looks ugly and would follow on in subsequents emails. Umlaut ä, ü and ö in the message text is ok though. Can I somehow make Chronoform to accept the German "umlaut" ä in the email address?
Rgds,
Gunnar
Gr GreyHead 11 Jan, 2016
Hi Gunnar,

There is nothing in ChronoForms that will reject an umlaut - but some mail servers will. I just tested this with your address in the From address of a form and the form sent correctly (vias GMail) but when received the From address has been removed.

Bob
gc gcarne 11 Jan, 2016
Answer
1 Likes
Hi Bob,

Thanks for your quick reply. Mysterious are the ways. When I put the emai address in the ChronoForm as info@ xn--logopdie-christ-4kb.de it was somehow back-translated and came out with umlaut on the receiving server as well as in the follow-on forwarding and replying to other servers. In other words, PROBLEM SOLVED...without knowing why.

Rgds,
Gunnar
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