[maildropl] Error message in maillog

[Kevin E. <ke...@ev...>]

I am trying to configure maildrop on my mailserver but whenever I send a =
message to my email, I get this error message in the maillog and I don't =
get the email.

Aug  4 22:14:19 titus maildrop[29991]: Cannot have world/group =
permissions on the filter file - for your own good.
Aug  4 22:14:19 titus qmail: 1028513659.686783 delivery 221: deferral: =
/usr/local/bin/maildrop:_Cannot_have_world/group_permissions_on_the_filte=
r_file_-_for_your_own_good./


What does it mean, and how do I fix it?