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Pictures in emails

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kirk@inturlnet View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kirk@inturlnet Quote  Post ReplyReply Direct Link To This Post Topic: Pictures in emails
    Posted: 08 December 2003 at 11:49am
Does anyone know how to get spamfilter to reject all those emails that have pictures instead of text, I dont think it can pick up the text within those pictures thanks.
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Alan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Alan Quote  Post ReplyReply Direct Link To This Post Posted: 08 December 2003 at 1:46pm

If you are not familiar using RegEx, try filtering by keyword using entries like the following and see if that gets the results you want.

src="http
src='http
src=http
src="cid:
src='cid:

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kirk@intur.net View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kirk@intur.net Quote  Post ReplyReply Direct Link To This Post Posted: 09 December 2003 at 11:08am
Thanks bud I will try that.
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Desperado View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Desperado Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2003 at 4:57am

You should also try adding the following to your INI file and then restart the service:

This setting goes under the [server settings]

FilterBase64html=1

Dan S.

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MartinC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MartinC Quote  Post ReplyReply Direct Link To This Post Posted: 13 December 2003 at 7:06pm

Dan,

what does that ini file setting do precisely?

I noticed a lot of options in the ini file but never saw a complete rundown of their functions.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote notauser Quote  Post ReplyReply Direct Link To This Post Posted: 18 January 2006 at 4:28pm

You could use regex keyword filter:

^([\s]|)+((<[A-Za-z0-9"'\.:\-_= /\?&]+>)([\s]|)+)+$

 

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Desperado View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Desperado Quote  Post ReplyReply Direct Link To This Post Posted: 18 January 2006 at 6:51pm

notauser,

What are you attempting to do with the above RegEx?   The "+" refers to an empty operand so I think there is an error there in any event.

MartinC,

I did not see your previous question ... sorry.  The FilterBase64html=1 filters headers with the following type of construct:
Content-Type: text/plain
Content-Transfer-Encoding: base64

Base64 is valid for an attached image (gif for instance) but *not* for text/plain so this setting will filter those.

Kirk,

I use a "Brute Force" RegEx but is does get some newsletters:
((?i)img alt="".*src="cid\:)



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