Re: Antispamming with header checks and regexp

[Istvan Prosinger]

On 2017-02-07 10:12, Ralph Corderoy wrote:

Hi Istvan,

Noel Jones wrote:
> Remember that header_checks won't match encoded subjects

We need to see the raw Subject header from the email that failed to
match.  It was probably encoded.

    $ scan -forma '%{subject}' .
    =?UTF-8?B?VGhpcyBpcyBzcGFtLgo=?=
    $ scan -forma '%(decode{subject})' .
    This is spam.
    $ grep -i '^subject:' `mhpath .`
    Subject: =?UTF-8?B?VGhpcyBpcyBzcGFtLgo=?=
    $

It's to allow non-ASCII characters in the some of the headers, e.g.
Subject.

Thanks for this. It's UTF-8, and indeed, it's encoded.
Now this puts on some limits on how to fight it.

Best,
Istvan