[exim-dev] header syntax check: quoted printable and comma i…

Hello,


we got problems with the header syntax check:

failed: To: =?ISO-8859-1?Q?=22H=E4le,_Anita=22?= <ahaele@???>
passed: To: =?ISO-8859-1?Q?=22H=E4le=2C_Anita=22?= <ahaele@???>

The difference is the "comma" inside the quoted printable part of the
address.

Is there some document describing the correct parsing of such header
lines? In RFC5322 (internet message format) and RFC 2045 (MIME
extensions) I do not find anything that could point me to some answer.


Is it Exims fault? Should/could Exim be more liberal? Or is it the fault
of the MUA generating the failing line?

    Best regards from Dresden/Germany
    Viele Grüße aus Dresden
    Heiko Schlittermann
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