You must follow the next steps, as root, in order to finish the installation: 1) Make sure uucp is a trusted user to sendmail. To do this, check if your sendmail.cf has a line with "Tuucp" 2) Disable sendmail from answering smtp requests, but make sure it handles queue delivering. You have two choices: a) Start sendmail without the "-bd" flag, but with the "-q30m" one. b) Do not start sendmail as a daemon, and add an entry in /etc/crontab to run sendmail -q when needed. For example, add the following line to your /etc/crontab: */30 * * * * root /usr/sbin/sendmail -q In any case, you'll most likely have to edit /etc/rc.conf to change sendmail configuration. 3) Add smtpd to your inetd.conf: smtp stream tcp nowait root /usr/local/sbin/smtpd smtpd 4) smtpd runs in a chrooted environment, so you must feed this environment with any configuration file it needs. Make a copy of /etc/resolv.conf and /etc/localtime to /var/smtpd/etc. If you ever change any of these files, remember to change the copies also. Do not make a symbolic link, as it will not work in the chrooted environment. 5) Create your own /var/smtpd/etc/smtpd_check_rules. There are some examples in that directory. If have any problem, take a look at http://www.obtuse.com/juniper-docs/man/smtpd_address_check.html. 6) Reboot ! (Or restart all those daemons manually, if you know how :^) )