Spam Issues w/ MailScanner and SpamAssassin

[John Wilcock]

Before you start looking too closely at spamassassin rules, have you set 
up some basic anti-spam settings on the MTA side? In particular, 
rejecting invalid and non-FDQN HELO can be a big help, as can one or two 
reliable RBLs (spamhaus zen is generally considered safe enough to 
reject outright at MTA level, for example). And of course make sure 
you're rejecting mail to unknown users rather than diverting to catchall 
accounts.

Le 02/03/2012 17:25, Jonathan Bober a écrit :
> All,
>
> I setup a mail server for a small business with mailscanner,
> spamassassin, and clamav to handle any viruses or spam. They were being
> inundated with spam still so I adjusted some settings within mailscanner
> and spamassassin as well as adding pyzor, razor, dcc and sought rules.
> For most users this has helped quite a bit but there are still 4 users
> within the system that are getting hundreds of “enlargement” emails and
> they are at odds with me about it. Anyone have any experience with a
> small group of users that are getting tons of spam? Any possible causes
> mailscanner and spamassassin to allow this through? I have the system
> set to delete spam as it comes in but this is to no avail.
>
> Thanks,
>
> Jonathan
>
>
>