Email security & deliverability · grade A
v=spf1 ip4:45.61.0.100 ip4:68.67.40.131 include:_spf.salesforce.com include:_spf.google.com include:mail.zendesk.com include:sendgrid.net include:amazonses.com include:_spf.psm.knowbe4.com include:mailgun.org ~all