Email security & deliverability · grade A
v=spf1 include:_spf.frontier.com include:_spf.mail.yahoo.com include:sendgrid.net include:mktomail.com include:icpbounce.com include:spf-0019f703.pphosted.com include:_netblocks.act-on.net ip4:44.238.97.35 ~all