On Sep 9, 2013, at 5:21 PM, SM <sm@xxxxxxxxxxxx> wrote: > Yes. Somebody would write a MUA to do it if it wasn't possible. What they do not, however, do, is to fix up the signature so that it still validates after the editing has been done.
On Sep 9, 2013, at 5:21 PM, SM <sm@xxxxxxxxxxxx> wrote: > Yes. Somebody would write a MUA to do it if it wasn't possible. What they do not, however, do, is to fix up the signature so that it still validates after the editing has been done.