Well, I had build exim-4.12-1 over ssh, thus TZ had been indirectly set by sshd and that value had been silently adopted by exim as a worldwide default.
Thanks to Greg Matheson for alerting me. Could you upload the following files, deleting 4.12-1 and keeping 4.10-2 ? http://home.attbi.com/~phumblet/setup.hint http://home.attbi.com/~phumblet/exim-4.12-2.tar.bz2 http://home.attbi.com/~phumblet/exim-4.12-2-src.tar.bz2 Thanks Pierre