For example, are you using amavisd-new, clamav, spam-assassin ?
...And additionally, postscreen (with dnsbl !), perhaps sane-security
(as part of clamav), fail2ban (to block repetiive unsuccessful
connections) etc. ?
Use sa-learn too!
Perhaps this is more an amavisd question rather than a postfix one!
All the best,
On 15/3/2014 5:35 μμ, jason hirsh wrote:
> I have been noting an big increase in spam that contains html and images One common feature is that these emails contain hidden text that only shows up when I look at the source
> I found samples of this at http://www.hoax-slayer.com/hidden-text-spam.html >
> Right now I have been having some success by blocking a country , in the most common instance .eu, in the header checks
> but can’t think of a body check to catch this when it spread further
> I would appreciate any suggestions
I am using Postfix with Amasvid-new/spam assassin and Dovecot
Over all doing pretty good catching stuff but this is combination is new to me and the only guides that discuss it seem to be trying to sell
On Mar 15, 2014, at 3:10 PM, Nikolaos Milas <[hidden email]> wrote: