Configurable sender address for recipient verification

[Daniel L. Miller]

Is there a way to use the message sender as the address used by the 
recipient verification probe?  Or is the only control a global 
address_verify_sender change?

I'm asking because a mailing list I use must have made a change in their 
filters, and is refusing the double-bounce sender address for the 
recipient verification probe from my server.

On a unrelated note, my initial submission for this message contained 
the word "subscribe" and was rejected by the automatic filters.  I'm 
trying again now with quotes to see if it gets through.
--
Daniel