I have managed to tackle spam to a good extend with a score of 2.8. But these days the spammers are using tricky subject lines. I have no idea how to curb them, neither the subject line nor the contents show signs of spam. See these subjects ..
"Ad u.lt, P. ic. ture"
"S C,H 0,O L Gl _RLS PO R _N"
"B L.0, W_ J OB"
the contents have links that are just some random letters joined to form a domain. Shit.
The spam score for these mails are like 1.8, 1.3, 2.35 etc. So they are nowhere near my score of 2.8 (which I think is a bit strict check). I really need to beat these guys.
Now is it true that my only chance is to move these mails to Junk and thereby train zimbra to detect them as spam the next time?
I could bring the score further down but that will affect my legitimate mails.
Out of desperation I had to pick out source mail ids and block them in salocal.conf.in but that is not practical. I need to make zimbra more clever and bring out her best.
Please share if any one had to face this, your thoughts on how it can be improved. Hoping for a quick response, thank you.