Mark Martinec wrote:
Tom,Hi Mark.
| > Turning on SA auto whitelists is presently not useful
| > with amavisd-new. There is a fundamental problem in that
| > SpamAssassin is geared to work fine with one-recipient-
| > -at-a-time messages, and amavisd-new tries to process
| > multi-recipient messages in one go if at all possible
| | I thought that something like postfix wouldn't break the email up | into multiple deliveries until after it had passed through the | advanced filter portion of the process.
Right. It doesn't.
| Given that process flow, the email would still be processed once.
| | Even if amavisd-new processes multi-recipient messages in one pass | (I assume that md5-hash has something to do with this) then | wouldn't the disposition w.r.t. spam be retained as well and | therefore the AWL would only be adjusted the one time that the | email passed through amavisd?
- AWL is supposed to be per-recipient. Each recipient has its
own automatically updated whitelist.
- amavisd-new has no way of telling SA what the envelope recipients are
(SA can only guess that from the header, and this can only work
when SA is called at the final stage from the local delivery agent
(e.g. procmail), when there is already only a single recipient)
| If you went through the AWL for the amavis user once for each | reciptient you would really screw up the AWL ratings, but the same | would be true for the Bayesian filter statistics...
Although Bayesian works best when it is trained for a particular
user, it is still _very_ useful with a single site-wide database.
Given a larger set of ham/spam messages to train, the lack
of specialization can be compensated to some degree.
AWL on the other hand (as I understand it) is only useful
as a per-recipient information. (but I may be wrong here)
| Is there any way to enable SA auto whitelist? Or is it S.O.L.
You can turn it on, but it will always see only one a.w. list,
namely the one belonging to used amavis (or vscan)
- as things stand now. Some special AWL handling would need
to be devised, and it is not high on my priority list.
That's exactly how I run it (With the 20021130 version of amavisd-new). With a single global list for the whole site (~27000 users). And it's on the gateway that just does relaying... No local delivery at all. I'm curious... And haven't thought greatly about it as you seem to have done. Why is a single global list bad in your opinion? Rather than a single one? When running our mail systems, I'm quite happy with a global list...
Hamish.
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I enjoy every minute of it... |
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