Re: [exim] Checking for missing closing boundary within mime…

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Auteur: SeattleServer Mailing Lists
Date:  
À: exim-users
Sujet: Re: [exim] Checking for missing closing boundary within mime (or data) ACL?
On Sun, May 21, 2006 2:30 am, Casey Allen Shobe wrote:
> I reviewed some statistics recently, and found that a spamassassin check
> for a missing closing boundary on MIME parts matches mail which is >99%
> spam and only 3 possibly-legitimate messages that I could identify based
> on the sender, recipients, sending host, and subject data.
>
> I could simply increase the weight of the SA test, but this would cause
> the messages to be bounced with an error indicating that it was spam,
> rather than something that more clearly described the fact that the mail
> was malformed.
>
> So I would like if possible to reject these sorts of broken messages from
> exim. I looked through the mime/demime parts of the manual, but couldn't
> find anything obvious. Does anybody know if this is possible?
>
> Also, I have the following in my MIME ACL:
>
> deny    condition       = ${if >{$demime_errorlevel}{2}{1}{0}}
>         demime          = *
>         message         = Serious MIME defect detected ($demime_reason).
>         log_message     = MIME: Serious MIME defect detected
> ($demime_reason).

>
> ...however the manual indicates that the demime condition will only work
> in the DATA ACL (though I've gotten no errors with the current setup). So
> am I correct in assuming that I should move the above into the DATA ACL
> instead?
>
> Where can I find documentation on what causes demime to return the
> possible errorlevels, and what the possible return values are for
> $demime_reason? I suspect that therein the answer to my problem lies...
>
> P.S. Is the MIME ACL stuff intended as a newer full replacement for the
> DEMIME stuff that I should be using instead?


No answer in considerable time, so I thought I'd ask once again.

Any ideas on any of this? Anybody familiar with the mime acl?? Any
advice very welcome.

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