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There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.messagelabs.com include:_spf-uk.echoworx.com exists:%{i}.spf.hc368-39.ca.iphmx.com -all.

Top Domains with TXT set to v=spf1 a mx include:spf.messagelabs.com include:_spf-uk.echoworx.com exists:%{i}.spf.hc368-39.ca.iphmx.com -all