Email security & deliverability · grade A
v=spf1 ip4:90.187.126.1 include:_spf.google.com include:aspmx.sailthru.com include:_spf.salesforce.com include:em727.artnet.com include:sendgrid.net include:amazonses.com a:artnet.com include:47945211.spf02.hubspotemail.net ~all