Email security & deliverability · grade A
v=spf1 include:eu.zeptomail.net include:_spf.rtl.nl include:mail.zendesk.com include:sendgrid.net include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.google.com include:mailswitch.nl include:servers.mcsv.net mx:twobridges.io -all