Add black using something like spamhaus. And grey listing to the mail server so that legitimate mail is delayed slightly, but spammer do not have the time or resources to stay re-trying over and over again if grey listed.
JAmes On 16/03/2013 10:21, Jonathan Aquilina wrote:
Here is my next issue with my spam filtering on my clients server. I have solved my previous issues with the way i had spam filtering setup and not displaying the SPAM tag in the subject, which it is now doing. The next issue is they are recieving spam messages which are spoofing the sender to make it look like it came from a legitimate user on the inside of the server. I have SPF enabled and in DNS which seems to have helped a bit but they are still recieving them. Spamassassin is setup as a baysian filter. How is it that these emails are still getting spoofed, is DKIM the next step that i need to take to prevent that? -- Jonathan Aquilina _______________________________________________ MLUG-list mailing list [email protected] http://linux.org.mt/cgi-bin/mailman/listinfo/mlug-list
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