Blocked filename attachments

Donovan Jones d.jones at FX.NET.NZ
Tue Sep 13 23:44:04 IST 2005

On Wed, 2005-09-14 at 08:32 +1000, Michael Mansour wrote:
> Hi,
> Currently I have my system blocking the following
> filetypes in the filetypes.rules.conf file:
> deny    MPEG            No MPEG movies          No
> MPEG movies allowed
> deny    AVI             No AVI movies           No AVI
> movies allowed
> I want to allow them through for a particular domain
> _only_, while keeping the default behaviour for every
> other domain, but I don't quite understand how to do
> this from the explanation given in the
> MailScanner.conf file:
> # Set where to find the attachment filetype ruleset.
> # The structure of this file is explained elsewhere,
> but it is used to
> # accept or reject file attachments based on their
> content as determined
> # by the "file" command, regardless of whether they
> are infected or not.
> #
> # This can also point to a ruleset, but the ruleset
> filename must end in
> # ".rules" so that MailScanner can determine if the
> filename given is
> # a ruleset or not!
> #
> # To disable this feature, set this to just "Filetype
> Rules =" or set
> # the location of the file command to a blank string.
> Filetype Rules = %etc-dir%/filetype.rules.conf

in /etc/MailScanner/MailScanner.conf

you need to point to a file like this:

---cut here---
Filetype Rules = %rules-dir%/filetype.rules
---cut here---

then in this file (ie /etc/MailScanner/rules/filetype.rules) you need:

---cut here---
To:   %etc-dir%/otherdomain.filetype.rules.conf
FromTo: default           %etc-dir%/filetype.rules.conf
---cut here---

The default ruleset has the defaults the otherdomain ruleset can have
whatever you want for the domain concerned

you can do the same thing with filename rules.

Don Jones

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