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how to stop Contact us spam


Saurabh Jain

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What do you use to receive mail? 

In postfix you can filter out a lot of spam using known blacklists and some tweaks, for example this is what I have and I see a lot of rejections in the logs : 

 

smtpd_recipient_restrictions =
    permit_sasl_authenticated
    reject_non_fqdn_recipient
    reject_unknown_recipient_domain
    check_policy_service unix:private/policyd-spf
    reject_rbl_client clients.rbl.gcolpart.com
    reject_rbl_client zen.spamhaus.org
    reject_rbl_client b.barracudacentral.org
    reject_rbl_client cbl.abuseat.org
    reject_rbl_client zen.spamhaus.org
    reject_rbl_client bl.spamcop.net

 

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