I would like to be able to add different headers to use for filtering at a later time.
Adding headers is done as part of MML Script processing. Any MML script that processes messages can add headers to messages, examples of such scripts are incoming.mml outgoing.mml or eom.mml. These scripts require GMS Anti-Spam.
By utilizing the powerful MML programming language you can create either an outgoing MML script or an end of message script that will add the additional header fields you require.
See MsgAddHeader in the MML Programmers Guide which you can download from this web site.
NOTE: Gordano do not support the debugging or writing of MML scripts.
Keywords:additional headers MML