Re: Cyrus - Rspamd - Sieve

El 1/2/21 a les 10:48, Ian Batten via Info ha escrit:
> Is it worth doing at all?
> 
> I run rspamd outside Cyrus: it’s a Postfix milter, Cyrus gets an lmtp 
> feed but has no interaction with rspamd.

Well, it depends. I'm still using spamassassin (I'd like to try rspamd 
but I didn't yet) and bayesian filtering is just a small part of the 
scoring, so maybe it doesn't make much difference.
At home I have a simpler setup, I use dspam (sadly it's discontinued) 
and it's really effective, but it needs training.


> I’m also nervous about using the user’s spam folders because those are 
> often the result of client-side Bayesian filtering, which is somewhat 
> error-prone, so the chances of ham (or at least bacn) ending up in there 
> is non-zero.  Users are also very bad at classifying spam so using their 
> main inbox as a source of ham is unwise.

That could be a problem with spamassassin (the training is server level, 
but then the remaining rules have more weight than the bayesian 
filtering) but not with dspam (each user has its own dataset).

> 
> Rspamd is _/very/_ good, and increasingly I just leave it to do its 
> thing.  With rspamd and clamav’s phishing patterns I doubt I see a piece 
> of phishing email getting through to me more than once a month, and my 
> users report similarly.  I have a lot of bacn which is correctly marks 
> as spam-ish, and I similarly see very little outright spam.
> 
> Before wading in an doing a complex learn/mode thing, just run rspamd 
> unsupervised for a month and see how it does on its own.  I think you’ll 
> be very pleased.

I'll have to try it one of this days.

Bye
-- 
Luca Olivetti
Wetron Automation Technology http://www.wetron.es/
Tel. +34 93 5883004 (Ext.3010)  Fax +34 93 5883007

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