I have installed amavis-0.3.12 for exim 3.36 with clamav support. I have configured the exim.conf as mentioned in the doc README.exim (which came with amavis) but i have a problem.

I am getting multiple copies of the same mails random times but less than 10. Am i doing something wrong or forgot something? When i restore the old exim.conf file everything works fine.
Please suggest something .