In OS X Mail.app (version 6.2 from OS X 10.8.2), I can see how to automatically add a signature for all new messages, but I do not want it automatically added when I reply to a message. Is there a way to achieve this?
Not sure if anyone ever answered this. I came here looking for a solution which was ever so simple.
Open Mail.app, go to Mail -> Preferences or use the key-combo Command,
Select the Tab that says 'Signatures' and uncheck the box that says to have the 'signature' above quoted text.