Hello Gordon, I was going through the documentation for debian/ubuntu for exim4u_ver3.1.0 and I came across these instructions: */In Debian/Ubuntu, the SPF perl module is located at /usr/local/bin/spfd instead of /usr/bin/spfd.perl-msq./**/ /**/Therefore, the command to put into /etc/rc.local as described in the INSTALL file should be amended to reflect this/**/ /**/location as follows:/**/ /**/ /**/ /usr/sbin/spfd -path=/tmp/spfd --socket-user Debian-exim --socket-group Debian-exim --set-user Debian-exim &/* I am running Ubuntu 14.04LTS and the argument -path is deprecated: */Warning: 'path' option is deprecated; use 'socket' instead./**/ /**/spfd (PID 7007): Listening on UNIX socket '/tmp/spfd'./* You can change -path to -socket. Below line works for me without any warning/error *//usr/sbin/spfd -socket=/tmp/spfd --socket-user Debian-exim --socket-group Debian-exim --set-user Debian-exim/* If anyone else can reproduce the above before committing that would be great. Neza.