On Mon, Mar 07, 2011 at 08:04:54AM +1100, Brad Hards wrote: > On Mon, 7 Mar 2011 07:47:01 am Victor Duchovni wrote: > > SMTP is not HTTP. There is no "User-Agent" header in RFC 822 messages. > > I don't think its in the spec, but there is in your email: > User-Agent: Mutt/1.5.16 (2007-06-09)
Regardless, this is a non-standard header element and carries no
meaning. It should be neither added by the MUA, nor removed by the MTA.
--
Viktor.
