> I just changed /etc/mailname on all of my machines to contain: > > qobi@upplysingaoflun>cat /etc/mailname > purdue.edu
You know it makes sense to do this. :) I had never manually edited /etc/mailname. I took whatever what put there by the debian installer perhaps as modified by whatever packages I installed and by running dpkg-reconfigure exim4-config. As per another post, on thakaa running wheezy I have qobi@thakaa>cat /etc/mailname thakaa.ecn.purdue.edu qobi@thakaa>tail -n 1 /etc/aliases root: q...@purdue.edu qobi@thakaa> and it does correctly forward mail to root to q...@purdue.edu. On upplysingaoflun running jessie I have qobi@upplysingaoflun>cat /etc/mailname ecn.purdue.edu qobi@upplysingaoflun>tail -n 1 /etc/aliases root: q...@purdue.edu qobi@upplysingaoflun> and it does not. I have tried putting each of upplysingaoflun.ecn.purdue.edu ecn.purdue.edu purdue.edu in upplysingaoflun:/etc/mailname and none of them work. The debian installer, perhaps as modified by dpkg-reconfigure exim4-config put upplysingaoflun.ecn.purdue.edu in upplysingaoflun:/etc/mailname But it does qualify a bare qobi or root correctly. Neither thakaa (wheezy) nor upplysingaoflun (jessie) will qualify a bare qobi. I don't care about that. It would be nice to fix (i.e. send to @purdue.edu) but is not crucial. Thakaa (whezy) but not upplysingaoflun (jessie) will ultimately get mail addressed to a bare root to q...@purdue.edu. That is what I would like to fix on upplysingaoflun (and all of my other machines running jessie). Thanks for everyone's help on this. Jeff (http://engineering.purdue.edu/~qobi)