You can request our support team to bulk import your Filtering Rules by sending us a spreadsheet of your whitelist / blacklist: 


  1. Create a CSV, XLSX or ODS file in MS Excel. Spreadsheet must have two columns, "action" (values: "A" for allow, "B" for block) and "rule" (the filtering rule). 
  2. Example rules that we accept are located at https://support.duocircle.com/support/solutions/articles/5000554833-email-filter-rule-examples
  3. Send your spreadsheet to support@duocircle.com.