Blocked Content whitelist

Dan Spray danslists at conpoint.com
Thu Apr 22 14:33:39 IST 2004


This worked great.  Thanks a ton.  I did notice that one of the options in
that section is to log IFrame.  I was wandering if anyone knew how those
were entered into the logs?  I would like to see these and am just wondering
what I would |grep for in the logs.

Thanks again,

Dan

-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf
Of Peter Bonivart
Sent: Wednesday, April 21, 2004 5:31 PM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Blocked Content whitelist

Dan Spray wrote:
> Where would I reference the ruleset?  I looked through the
MailScanner.conf
> file for such a thing and didn't find it.  Also, do you have an example
line
> for this?

I need to know why it was blocked, there's several possibilities, like
IFrame and Scripts and so on. Look at the postmaster message or in the
server logs to find out.

Let's assume it's blocked because it contains IFrames. Then you have an
option in MailScanner.conf called "Allow IFrame Tags". It can be set to
yes, no and disarm. It's probably set to no now and blocks all messages
containing IFrames. If you set it to yes all IFrame messages will go
through and that may not be what you want. Therefore you need a ruleset:

MailScanner.conf:
Allow IFrame Tags = %rules-dir%/iframe.rules

iframe.rules:
To:             user at yourdomain.com             yes
FromOrTo:       default                 no

That's how you do it. But if you use disarm you might not need to
"whitelist" this guy since all IFrames goes through but they don't work
anymore. I use that for some content since I don't want to maintain
rulesets for complaining users.

All the content block stuff is in the same section as IFrames in
MailScanner.conf.

--
/Peter Bonivart

--Unix lovers do it in the Sun

Sun Fire V210, Solaris 9, Sendmail 8.12.10, MailScanner 4.29.7,
SpamAssassin 2.63 + DCC 1.2.39, ClamAV 0.70 + GMP 4.1.2, Vispan 1.3



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