Безопасность и доставляемость почты · grade A
v=spf1 ip4:129.152.0.0/17 ip4:170.146.220.0/23 ip4:174.129.15.10 ip4:216.255.103.0/24 ip4:199.231.132.172 ip4:52.205.20.144 ip4:208.185.229.45 ip4:208.112.39.158 ip4:52.72.16.225 include:_spf.google.com include:us-k1.o365.crossware.co.nz include:usb._netblocks.mimecast.com include:spf.dynect.net include:spf.constantcontact.com include:rnmk.com include:mail.zendesk.com ~all