Re: .mailfilter file stopped working with 2.7.1

Sam Varshavchik <[email protected]> Wed, 15 Jan 2014 20:43:49 -0500

Newsgroups	gmane.mail.maildrop
Message-ID	<[email protected]>

Nerijus Baliunas writes:

> On Wed, 15 Jan 2014 19:56:09 -0500 Sam Varshavchik <[email protected]>  
> wrote:
>
> > Correct. maildrop is now MIME-aware. The search patterns should simply be
> > specified in UTF-8 (noted in the maildropfilter man page), and MIME-encoded
> > content will be properly decoded, transcoded to UTF-8, and compared. Mixed
> > encoding should be fine, they'll be transcoded to UTF-8, as long as it's an
> > encoding that's known to iconv. However, it does mean that messages must be
> > properly MIME-encoded.
> >
> > Looks like from the log files shows that the sample message appears to have
> > raw ISO-8859-1 content in the headers, which is invalid.
>
> Yes, even worse - subject has both ISO-8859-13 and UTF-8 raw characters  
> without
> any MIME encoding.
>
> How can I filter such badly formatted messages? Note, that I filter by  
> "From" header,
> which does not have illegal characters. I can send sample message if needed.

If you're filtering by the From: header, which is properly encoded, you just  
specify your search pattern directly in UTF-8.

So, if the message has:

From: =?iso-8859-1?Q?H=F3la!?= <[email protected]>

This should be matched by maildrop's search pattern:

if (/From:.*Hóla/)

The fact that Subject might be broken and not encoded properly doesn't  
matter. You're matching on the From: header.

Note that the search pattern is always in UTF-8.

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