Nevermind. I found formail -i. In case anyone's interested, here's a recipe that I find handy for debian-user:
:0 * ^x-mailing-list.*debian-user | formail -i "reply-to: debian-user@lists.debian.org" \ | rcvstore +lists/debian/user > Does anyone know of a way in procmail to to replace one header with > another? > (ie, replace the contents of the From header with the contents of the > List-ID > header?) crh -- Corey R. Halpin (http://www.cae.wisc.edu/~halpin/ ) Student of Electrical Engineering and Computer Sciences University of Wisconsin - Madison