Re: [courier-users] SpamAssassin during SMTP dialog

Julian Mehnle schrieb:

>Dirk Kulmsee wrote:
>
>
>>We all would love to block spam at the earliest stage, but at least here
>>in Good ol' Germany you are half way in Jail if you do so.
>>Mail & letters are PERSONAL and you may not intrude.
>>
>>
>
>This is nonsense. Just put a clause into your AGB (Terms and Conditions),
>then you're fine.
>
>
>

Admitted. As far as the Lawyers are concerned U probably get out.

>>How do you (all) do it?
>>
>>
>
>I use Courier::Filter[1] to reject, during the SMTP transaction, messages
>that come from a blacklisted sender (using various DNSBLs), fail an SPF
>test, contain a virus (according to ClamAV), or contain attachments with
>certain filenames (e.g. .exe, .com, .scr).
>
>
>

Check. Except for the filenames we also rely on Spamhaus & Co to Block
before acception.

>For rejecting spam, I rely solely on reputation systems (i.e. blacklists)
>and I recommend to my users that they use the SpamCop reporting service[2]
>to report spam.
>
>
>

In my opinion this is not the (always) the way to go. It bears work onto
the user. The user often does neither understand he problem nor the task
I want him to manage.

>Rejections are logged into an SQL database, and users can log into a
>service website and see the rejected messages that were directed to them.
>
>
>

I guess John Doe says "Huuhm"? I'm not sure our users check their Spam
Foldersb regularly.

>References:
> 1. http://search.cpan.org/dist/Courier-Filter
> 2. http://www.spamcop.net/anonsignup.shtml
> 3. http://io.link-m.de/public-stats/mail-rejected-messages
>
>

I'm afraid we all understand, but users don't. Or don't want to
understand. Or don't want to care. Or it's a Monday...
My policy is virus-cleaning, RBL blocking and then global filtering into
a personal SpamFolder. If THEY don't check that folder, there is a
threshold of 2 weeks before deletion.
Jay Lee's input allows the Wise Guys to do better.

--




Dirk Kulmsee





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