Filter Order |
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Filters are processed in a specific order. Once a filter determines an email is spam, all the following filters will be skipped.
Following is the order of the filters. In red are the blacklists, in green the whitelists:
Cached IP blacklist Greylist Whitelisted IP Whitelisted Email Address To Whitelisted EMail Address From Whitelisted Email From Domain Whitelisted Auto White List Force Delivery Allowed Domains Local IP Blacklist Local Domain Blacklist Local Emails Blacklist Local Emails TO Blacklist Not in Authorized TO Emails Country Blacklist Reject No Reverse DNS Reject Empty Mail From Reject Same To From Email address Reject if Recipient's email in Honeypot email list Reject if IP in Honeypot-generated auto-ban list Reject Same To From Domain Recipient Count > Max RCPTTO MX Record check SFDB Filter SPF Filter MAPS check Keyword Whitelist SFCD Filter Blank emails with attachments only Spam Images in PDFs Attachment Filter Keywords Image Filtering Bayesian Filtering SURBL check Antivirus Plugin |