Re: [AMaViS-user] Best way to (soft) whitelist?

Martin wrote:

> At the moment i use "whitelist_from" in the local.cf of spamassassin to
> whitelist senders/sender domains. I am not very lucky about that
> solution 'cause it will add a -100 to every mail that
> matches the listed senders. As many spam mails come with faked senders
> there is some spam passing that shouldn't.

> Reading a bit through amavisd.conf-default and this list, i got
> some ideas how this could be solved in amavisd.
> At the moment i am thinking of using @score_sender_maps
> for all incoming mail, if i understood it right it can
> be done with '.' =3D>[List of domains and scores]. As the List
> consist of about 30 entries and is growing i would put it into
> a file using the read_hash for score_sender_maps.

> Is this a good way or is there a better, more easy or more
> efficient way to do this?
=

> Regards / Mit freundlichen Gr=FC=DFen
=

> Martin B=E4rtl, CDP Bharat Forge GmbH

You can simply uncomment (and configure the path if needed)
# read_hash("/var/amavis/sender_scores_sitewide"),
and the entries will be added to the list along with all the existing
entries in amavisd.conf.

In the sender_scores_sitewide place entries in this manner:

goodguy@example.com -6
badguy@example.net 10
spamsamples@example.com -1200

Keep in mind SpamAssassin uses headers (like From:) to determine a
match for whitelist_from, and amavisd-new uses the envelope sender.
More often than not they are the same, but of course, not always.

IMHO using @score_sender_maps is simpler than using spamassassin's
wbl. To match the flexibility of amavisd-new's method, you would have
to create custom rules for each sender in spamassassin.

Also, in amavisd.conf it is possible to do per-recipient wbls if
needed, so this add even more flexibility.

# # per-recipient personal tables (NOTE: positive: black, negative: white)
# 'user1@example.com' =3D> [{'bla-mobile.press@example.com' =3D> 10.0}],
# 'user3@example.com' =3D> [{'.ebay.com' =3D> -3.0}],
# 'user4@example.com' =3D> [{'cleargreen@cleargreen.com' =3D> -7.0,
# '.cleargreen.com' =3D> -5.0}],

Gary V


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