Am 29.12.2012 12:29, schrieb Alessandro Vesely:
On Sat 29/Dec/2012 01:24:24 +0100 Michael Heydekamp wrote:
According to RFC 2821, it should indeed read "Return-Path:" (although the text itself contains a lot of matches also for "Return-path" and even "return-path", see https://www.ietf.org/rfc/rfc2821.txt).
[...]
In either case, strings are *case insensitive* and their character set is US-ASCII.
Oh, is this really the case? If so, then ALL headers (not only Return-Path) should be checked case-insensitive by finfo (which does currently not happen, AFAICS).
Can you point to the statement in any RFC where this is clearly stated? I couldn't find anything in 2821 and it's predecessors/successors. All statements about case (in)sensitivity refer to SMTP commands, local parts and domains only.
Happy new Year,
Michael Heydekamp Co-Admin freexp.de Düsseldorf/Germany