anoopsharda,
I don't know if you are using the same setup as rsevilla or as datadan, but I'll say this.
I got everything but the anti-spam configured and ran the software for about a month. I had increased occurances of the following:
1).... did not issue MAIL/EXPN/VRFY/ETRN during connection.
2).... lost input channel from .... [127.0.0.1] to Daemon0 after rcpt
I did some tweaking but did not fix the issue.
Lastly the word from Trendmicro is they have no horizen date to even commit to supporting the following configuration:
rh7.3/sendmail 8.12/viruswall 3.7.
I have opted not to use this software and have migrated to RAV, which is milter based rather than daemon based. I am currently evaluating the software for my application.
HTH