ä, ö, ü and ß

Four letters English doesn’t have. When spelling, say:
- ä — “A-Umlaut”
- ö — “O-Umlaut”
- ü — “U-Umlaut”
- ß — “Eszett” (or “scharfes S”)
If you cannot enter these characters, ae, oe, ue and ss are common replacements. Follow the spelling requested on a form. When copying an existing email address, keep every character exactly as given; changing it can produce a different address.