Zombies

[pete at pwdk.com]

Hi

Happy New Year :-)

I've just been looking at my process list and noticed quite a few 
Zombies, 15 in total, 8 MailScann and 7 sh, the email system seems to be 
working correctly as far as I can tell, so I'm not sure why I'm getting 
these Zombies.

Top output :-

2202 mailnull  20   0     0    0    0 Z    0  0.0   0:00.14 MailScann
21103 nobody    23   0     0    0    0 Z    0  0.0   0:00.00 sh


Are these normal?
Should I be worried about them?
Can anything be done about them?
Am I loosing emails?

I'm running CentOS 4.4 with cPanel, and used the MailScanner Service 
supplied by configserver.com

Thanks
Pete