Email security & deliverability · grade A
v=spf1 include:_spf.google.com include:_spf.salesforce.com include:_spf.sparkpostmail.com include:mailgun.org include:hubspotemail.net include:relay.mailchannels.net ip4:107.20.210.250 ip4:52.1.14.157 include:one.zoho.com ~all