On 3/18/2016 6:20 AM, Istvan Prosinger 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? >
You can't do this with postfix alone. You would not need a full external filter, but you could use a policy service or a tcp table, either of which are fairly simple and lightweight. Or you could just use the Message-ID as your mostly-unique identifier. -- Noel Jones
