On Tue, 4 May 1999, Christian Dysthe wrote:
> I see on a lot of incoming mail that there is a field called X-sender. On my
> mail it is only called Sender. What is the difference?
Sender is an official header, described in RFC 822. X-Sender is an
unofficial header, unstandardized.
> Do I have to have a "Sender" field at all?
See RFC 822. A Sender: header is supposed to be present if the sender of
the message is not the person whose email address appears in the From:
header.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
--
*** Exim information can be found at
http://www.exim.org/ ***
