Trying to run qmail - qmail faq say to add this to rc.local

tcpserver -v -u 7770 -g 2108 0 smtp /var/qmail/bin/qmail-smtpd \ 
2>&1 | /var/qmail/bin/splogger smtpd 3 & 

I am getting an error in my messages file saying the tcpserver can't figure out which port to use.

Please reply to the email if possible or I will have to wait until I can see the archives