Email security & deliverability · grade A
v=spf1 ip4:205.236.56.0/24 include:_spf.google.com include:spf.protection.outlook.com include:sendgrid.net include:spf.mandrillapp.com include:mailgun.org include:servers.mcsv.net include:242496473.spf06.hubspotemail.net ~all