Michael da Silva Pereira wrote:
> Hi Guys,
>
> I was wondering if guys could paste a couple of there acl rules on the mailling list, nice anti-spam ones.
>
> Thanks,
> M
Hi
Not really antispam checking but more mime checking.
acl_check_mime:
# Decode MIME parts to disk. This will support virus scanners later.
warn decode = default
# File extension filtering.
deny set acl_m1 = ${extract{-1}{.}{${lc:$mime_filename}}}
message = This message contains a prohibited file extension ($acl_m1)
log_message = REJECTED ATTACHMENT ($acl_m1)
condition = ${if match{$acl_m1}{\N^(avi|asf|ade|adp|asx|\
bat|bin|btm|bas|\
cpl|com|cmd|class|cab|chm|crt|\
dll|\
exe|\
hta|hlp|\
js|jse|java|jtd|\
mpeg|mp3|mpg|mda|mdb|mde|mdt|mdw|mdz|msc|msi|msp|mst|\
ole|ocx|oft|ovl|ops|\
prf|plx|pcd|prf|pps|pif|ppt|\
reg|\
shs|scr|pif|sys|shb|scf|sct|\
url|\
vb|vbs|vbe|vxd|vss|vst|\
wsf|wsc|wma|wsh|ws|wsf\
)$\N}{1}{0}}
# CLSID Attachment Blocking
deny condition = ${if
match{$mime_filename}{\N\{[a-hA-H0-9-]{25,}\}\N}{1}{0}}
message = REJECTED ATTACHMENT (CLSID)
# Refuse Empty (invalid) MIME Boundaries
deny condition = $mime_is_multipart
condition = ${if eq{$mime_boundary}{}{yes}{no}}
message = MIME ERROR (Empty MIME Boundary)
# Obtain MD5 Sum for file attachments.
warn condition = ${if !eq{$mime_filename}{}{1}{0}}
set acl_m1 = ${run{/usr/bin/md5sum $mime_decoded_filename}{${extract{1}{
}{$value}}}{}}
accept
Hope this helps
Kind Regards
Brent Clark
