Quoted Printable

Roger Jochem roger at RUDNICK.COM.BR
Mon Feb 21 18:19:59 GMT 2005


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But in the prior version, I was with HTML Content on, and just disabling the
phishing net solved my problem...

This version is making the same, with the phishing net enabled the files are
changing sizes... Disabling it solves the problem...

----- Original Message -----
From: "Julian Field" <MailScanner at ECS.SOTON.AC.UK>
To: <MAILSCANNER at JISCMAIL.AC.UK>
Sent: Monday, February 21, 2005 3:18 PM
Subject: Re: Quoted Printable


> Yes. But to be sure you will have to switch off all the HTML content
checks.
>
> Roger Jochem wrote:
>
> >In 4.39.2-1? I downloaded it about an hour ago...
> >
> >
> >----- Original Message -----
> >From: "Julian Field" <MailScanner at ECS.SOTON.AC.UK>
> >To: <MAILSCANNER at JISCMAIL.AC.UK>
> >Sent: Monday, February 21, 2005 11:42 AM
> >Subject: Re: Quoted Printable
> >
> >
> >
> >
> >>It should already be doing that. It watches to see if it actually
> >>applies the phishing messages to the email, and only then does it mark
> >>the message for rebuild.
> >>
> >>Roger Jochem wrote:
> >>
> >>
> >>
> >>>This could work too...
> >>>
> >>>These messages didn't have any phishing attack on it. If they weren't
> >>>rebuild, this would solve the problem...
> >>>
> >>>----- Original Message -----
> >>>From: "Julian Field" <MailScanner at ECS.SOTON.AC.UK>
> >>>To: <MAILSCANNER at JISCMAIL.AC.UK>
> >>>Sent: Monday, February 21, 2005 9:15 AM
> >>>Subject: Re: Quoted Printable
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>>I specifically didn't make the phishing net do more than alter the
> >>>>message if it needs to. If it doesn't detect a phishing attack, does
it
> >>>>still rebuild the message? I may well be able to stop it doing that if
> >>>>it is.
> >>>>
> >>>>Roger Jochem wrote:
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>>Too bad...
> >>>>>
> >>>>>In this case I would have to disable the Phising Detection...
> >>>>>
> >>>>>Could you consider doing an option of blocking, forwarding, deleting
> >>>>>
> >>>>>
> >the
> >
> >
> >>>>>phishing mails instead of changing the content of it (like spam)? The
> >>>>>phishing mails found by clamav are already treated as virus, not
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>forwarded,
> >>>
> >>>
> >>>
> >>>
> >>>>>so I don't see any problem in blocking MailScanner's too... And this
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>would
> >>>
> >>>
> >>>
> >>>
> >>>>>be and option, some users would send the message with the changed
body,
> >>>>>another ones would block them. They could be sended to an single
> >>>>>
> >>>>>
> >account
> >
> >
> >>>>>with a modified subject like it's already done with spam, maybe
> >>>>>"{Phishing?}".
> >>>>>
> >>>>>Another option would be to MailScanner modify only the header of the
> >>>>>message, instead of the body, putting the "{Phishing?}" before the
mail
> >>>>>subject...
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>>Yes. It's the message being rebuilt by MailScanner. Outlook Express
> >>>>>>shouldn't be sending these things out as Quoted Printable, but use
> >>>>>>base64 instead. This one is *very* hard for me to solve. We have
> >>>>>>
> >>>>>>
> >already
> >
> >
> >>>>>>put in an exception for most PDF files, these look like more
problems.
> >>>>>>
> >>>>>>Roger Jochem wrote:
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>>Hello, Julian!
> >>>>>>>
> >>>>>>>I made some tests with MailScanner to find out the problem with my
> >>>>>>>Outlook Express Quoted Printable attachments that change size and
> >>>>>>>format (between DOS and UNIX). I find out that if I disable the
> >>>>>>>Phishing Detection the e-mails passes without any change to the
> >>>>>>>attachment, and if I enable the Phishing Detection again, the file
> >>>>>>>comes with the wrokg size and converted to Unix. Makes sense?
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>--
> >>>>Julian Field
> >>>>www.MailScanner.info
> >>>>Buy the MailScanner book at www.MailScanner.info/store
> >>>>
> >>>>PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654
> >>>>
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> >>>
> >>>
> >>>
> >>>
> >>--
> >>Julian Field
> >>www.MailScanner.info
> >>Buy the MailScanner book at www.MailScanner.info/store
> >>
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> >>Support MailScanner development - buy the book off the website!
> >>
> >>
> >
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> >Before posting, read the MAQ (http://www.mailscanner.biz/maq/) and
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> >
> >
>
> --
> Julian Field
> www.MailScanner.info
> Buy the MailScanner book at www.MailScanner.info/store
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>
> Support MailScanner development - buy the book off the website!

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