Earlier I posted two questions and my mail config was broken and set a return-path to an unreachable address: rhogee@mixing.qc.dfo.ca My apologies. (Upon fetching the proposed-updates g++, I also upgraded sendmail and decided to rebuild the sendmail.mc and sendmail.cf files. The new one generates the unwanted return-path to my behind-a-firewall box. I haven't figured out why, but that's a topic for debian-user!) Peter