[Mailman-Developers] Duplicate footers

[S. Backman]

I've seen this posted several times, but have not found the answer.  Is
there any way to avoid duplicate (or more) copies of a footer showing up on
a post as a result of multiple replies?

Is there a type of delimiter (star or dash) that can be identified by
mailman as the start of a footer, which will indicate a point where mailman
would strip the following text until the next delimiter, before adding the
footer.  This would affectively remove all previous footers before adding a
new one.

S. Backman