On Mar 18, 2016, at 07.20, Istvan Prosinger <ist...@prosinger.net> wrote: > > Hello Everyone! > > I need to insert something like > > X-MY-ID-some-unique-ID > > into each email's header for local tracking purposes. > > The unique ID doesn't have to be some complicated hash, it can be something > like the <message-id>+<date> or <date><time> ... which would be mostly unique. > > Any ideas if such a thing could be done with just prepending in header > checks, without external filtering?
others have already answered the question, but as an aside, it's my understanding that rfc 6648 discourages/deprecates use of the "X-" prefix in, among a number of things, email headers. -ben
smime.p7s
Description: S/MIME cryptographic signature
