I was wondering if anyone knows of an SA plugin or another method to
determine if the envelope-from domain has a valid MX record that is
listening on TCP port 25. I don't think it would be a major scorer but
it could be useful in meta rules.
Been playing around with rspamd over the weekend to see how it compares
and so far not that impressed. It has a few features that are
interesting like the MX check but other than that it's not as impressive
as the author makes it out to be on the website comparing it to SA.
It claims to have better Bayes but so far I am seeing identical results
after identical training.
The Universal Configuration Language is terrible and hard to wrap your
head around it when the structure is so loose. Since it's not well
defined nor well documented it takes a lot of trial and error to figure
it out.
It doesn't seem to be as flexible as SA in many regards.
Right now I have rspamd only adding headers so I can compare with SA.
Tuning it out to match SA's accuracy is proving to be very challenging
and time consuming.
--
David Jones