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Obsolete Releases => SME 9.x Contribs => Topic started by: georgios on December 13, 2015, 02:40:50 AM

Title: TIPS for Spam
Post by: georgios on December 13, 2015, 02:40:50 AM
As our mail server is a big organization, we have a lot of SPAMS each days.
Currently our SPAM configuration is :

In addition E-mail WBL is installed with RHSBL Active.
DNSBL -> is disabled because it will refuse a lot of emails that we should get !

So I advice you moreover of this configuration to always check the 'IP' Spammer and checking the origin of the IP with this web tool : https://www.countryipblocks.net/

I Suggest you to block country IP that you may not receive any email.

From example, our 70% of our Spam come from Vietnam, so I took all the CIDR IP and block it with IPTABLES.

Our SPams decreases a lot with IPTABLES...

just an advice
Title: Re: TIPS for Spam
Post by: ReetP on December 14, 2015, 07:16:07 PM
If you check in the contribs section you will find the geoip blocking contrib.....
Title: Re: TIPS for Spam
Post by: DanB35 on December 15, 2015, 03:29:31 PM
I gave up on trying to block spam on my SME server and, on the suggestion of someone else here, signed up with spamhero.com.  They're a hosted spam-blocking system that costs $5/mo per domain (and any alias domains are included for free), and they have a 30-day free trial.  I went from hundreds of spam messages per day, to single digits.  Just something to consider.
Title: Re: TIPS for Spam
Post by: crazybob on December 15, 2015, 09:11:50 PM
I have been using spamhero for about 3 months, and love it. I shows about 3/4 of the stuff trying to come to my users is spam, and it blocks it
Title: Re: TIPS for Spam
Post by: guest22 on December 16, 2015, 12:49:55 PM
This helps too...
http://wiki.contribs.org/Clamav_unofficial_sigs
Title: Re: TIPS for Spam
Post by: georgios on December 16, 2015, 04:09:32 PM
Quote from: guest22 on December 16, 2015, 12:49:55 PM
This helps too...
http://wiki.contribs.org/Clamav_unofficial_sigs

many thanks, I set-up GEOIP, this works fine, what is the Level you set for the Antispam ?

I set HIGH / Level 6 / Level 6.