qmail pop3d

[Boz Crowther]

Where do I put the startup commands for qmail pop3d?  All the HOWTOs, which are excellent on all other aspects, just say, oh stick in a line that says:   tcpserver 0 pop3 /var/qmail/bin/qmail-popup YOURHOST \    /bin/checkpassword /var/qmail/bin/qmail-pop3d Maildir & I've tried putting in in /var/qmail/rc, /var/qmail/supervise/qmail-smtpd/run and running it from a command line, but the only one that works is the third option (which is obviously unsatisfactory).   I realize this is a pretty newbie question, and thank you in advance for your help.