[PLUG] Amavis wants...

[Michael C. Robinson]

[root at web admin]# cat /var/log/maillog|grep 'No decoder for '
Sep  7 06:52:49 web amavis[12457]: No decoder for       .lzo  tried:
lzop -d
Sep  7 06:52:49 web amavis[12457]: No decoder for       .arc  tried:
nomarch, arc
Sep  7 06:52:49 web amavis[12457]: No decoder for       .zoo  tried:
zoo, unzoo
[root at web admin]# 

I'm on a CentOS 5.6 system, how do I resolve these dependencies?