This is the oppinion of the author, it does not force you to share and is signed automatically.
You are free to keep them all errors for your own. Linux is the best game I ever played.
I've noticed because I took a look into the rc script before, others probably won't. I'd suggest to use the 10023 port.
2. from startup log: postgrey: FATAL: ERROR: can't open lock file: /var/spool/postfix/postgrey/postgrey.lock
Please add the dir /var/spool/postfix/postgrey/ to the package with uid/gid 200 (postfix user/group).