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There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.protection.outlook.com include:_spf.mlsend.com include:_spf.bigcommerce.com include:smtp.bigcommerce.net ~all.

Top Domains with TXT set to v=spf1 a mx include:spf.protection.outlook.com include:_spf.mlsend.com include:_spf.bigcommerce.com include:smtp.bigcommerce.net ~all