> tcpserver: fatal: unable to bind: address already used
>
> This came from /var/log/qmail/qmail-smtpd
That means that a second process is listening on port 25. Either you have
still another MTA (sendmail, exim, smail, ...) running or you bound inetd
to this port.
To disable inetd comment out the line that begins with "smtp" in
/etc/inetd.conf. After that look for the process id of inetd and issue the
command: kill -HUP <pid_of_inetd>
If this doesn't help it's the first thing (still running MTA).
Please test local delivery with qmail-inject, like the installation doc
says. This eliminates other problems with SMTP.
Regards Frank