encoding from name in mail header
I am from Germany and my name contains a special character (ä). If I send a mail the from-name in the mail header is encoded like following:
From: "=?ANSI_X3.4-1968?Q?Werner_Sch=3Fffer?=" <email@example.com>
ANSI_X3.4-1968 seems to be a very strange character set. Nevertheless the result is, that my name is not shown correct. (Sch?ffer insteed of Schäffer)
Writing my name into subject it is encoded like
This is fine and the name is shown correctly.
Is this a bug or is it customizable?