How to filter image spam with SA

[kopeah]

hopefully this works.... I have gotten an influx of spam since I upgraded to the latest version of spamassassin.

I am trying the first solution proposed in this thread.

It works great, my dspam caught it first though ..

 

[nobleclem]

dspam?

 

[gate2vn]

I have tried ImageInfo, but still received image spams. I have placed both ImageInfo.pm and imageinfo.cf into /etc/mail/spamassassin, and update v310.pre with
loadplugin Mail::SpamAssassin:lugin::ImageInfo /etc/mail/spamassassin/ImageInfo.pm

did I missed anything?

 

[Chrysalis]

imageinfo isnt as powerful and gets less hits.

 

[marvin]

I wonder why all the hassle for OCR. Wouldn't it be much easier to use hash-based (signature based) filter? If Exim can use clamav to filter attachment, i don't find a reason why it couldn't use similar approach for image content in emails.

 

[xemaps]

Right ! as sample there is a signature for debora spam
which can be added in a .cf file to be filtered by SA

For myself i prefer reject at smtp time by drop/deny with no cost.

With ImageSpam for other type of spam i gived spam points X2 in the rules.
So long it works perfect for my spams, it will stay so

for the delay 120s, there is no problem for my server, there is a firewall and rules wich survey services, including exim. So dictionnary attack is impossible. Notice i drop connexion, and have limited load, number of connexion aso...

 

[marvin]

A guide would be greatly appreciated.

 

[transmobius]

Seconded.

 

[TMMM]

Re: Re: How to filter image spam with SA

Are these to be on two seperate lines i.e

Mail::SpamAssassin:lugin::ImageInfo
/etc/mail/spamassassin/ImageInfo.pm

Jon

Is there a space or no space between the first line and the second when combining them into one line?

Thanks

 

[albatroz]

Is it so easy to install?

To try for text in image spam

Install ImageInfo plugin for Spamassassin ( i use exim & clamav on FC3 )

About thread link : http://mail-archives.apache.org/mod_mbox/spamassassin-users/200608.mbox/thread

# ImageInfo plugin
# download link : http://svn.apache.org/repos/asf/spamassassin/rules/trunk/sandbox/felicity/
# Download & Place 70_imageinfo.cf & ImageInfo.pm in /etc/mail/spamassassin
# add folowing line to /etc/mail/spamassassin/v310.pre
loadplugin Mail::SpamAssassin:lugin::ImageInfo /etc/mail/spamassassin/ImageInfo.pm

restart exim

Please notice that spamassassin filter by default only <256000 Bytes messages

 

[albatroz]

Amazing!
It was really easy to install. Now I expect it is effective.

BTW What is the safest place to find an updated version of the files?