In my setup, the server running spamassassin is different than the server delivering the final e-mail. This means a few extra headers will be added by the time the clients see the e-mail. If I were to take this e-mail and train spamassassin, it is no longer in the form that spamassassin sees originally (in terms of headers).
So my question is, is it even worthwhile to train spamassassin manually in this scenario ?