pgpsendmail instructions

[Familie van der Schaft]

LS,

I am trying to get pgpsenmail working but i can't  figure out what to do.
For example which instance of sendmail can/must  be replaced:

/usr/libexec/sendmail (which is symbolic link)
/usr/sbin/sendmail

in both cases, i get the following message:

/etc/rc.d >./sendmail  restart
sendmail not running? (check /var/run/sendmail.pid).
Starting sendmail.
SENDMAIL refers back to PGPsendmail!
Someone didn't read the installation notes...
/etc/rc.d >sendmail forcestart
SENDMAIL refers back to PGPsendmail!
Someone didn't read the installation notes...

But where can i find these instructions (notes).
The man-page (pgpsendmail(8)) does not give any extra info.
Can anybody help me?

Danny.