Postfix + Altermime on FC6 Not working

[simjith]

Hi All,

I am trying to add Disclaimer to all outgoing mails

My MTA is Postfix 2.4.5
OS Fedora Core 6
I had followed the instructions provided in this URL

http://www.howtoforge.com/add-automatic-disclaimers-to-outgoing-emails-with-altermime-postfix-fedora8

Also googled and tried lots of other links too
but what ever URL had i tried
its showing a common error while sending mails
First of all the mail is not at all delivering

And always showing below error message in /etc/log/maillog
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Oct 11 11:35:19 it001 postfix/qmgr[3767]: 5EA8650056: from=<[e-mail]>, size=546, nrcpt=1 (queue active)
Oct 11 11:35:19 it001 pipe[3844]: fatal: pipe_command: execvp /etc/postfix/disclaimer: Permission denied
Oct 11 11:35:19 it001 postfix/pipe[3843]: 5EA8650056: to=<[e-mail]>, relay=dfilt, delay=1244, delays=1244/0.01/0/0.18, dsn=4.3.0, status=deferred (temporary failure. Command output: pipe: fatal: pipe_command: execvp /etc/postfix/disclaimer: Permission denied )/etc/postfix/disclaimer
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

I had tried chmod 777 /etc/postfix/disclaimer
chown nobody /var/spool/filter
chown nobody:mail /etc/postfix/disclaimer
etc

Does anyone have a clue?

Thanks in advance,

Simjith