10IPS IP & network intelligence
nsf.gov

SPF record for nsf.gov

Email security & deliverability · grade A

SPF
✓ present
v=spf1 ip4:128.150.5.20/26 ip4:66.77.7.161/32 ip4:66.77.15.226/32 ip4:15.200.32.0/24 ip4:65.123.16.240/28 ip4:65.127.216.64/27 ip4:3.220.190.25 ip4:3.221.22.181 ip4:35.153.165.194 ip4:18.235.253.50  ip4:23.23.239.161 ip4:52.222.69.242 ip6:2620:10f:6001:5::20/121 include:spf.constantcontact.com include:spf.protection.outlook.com include:_spf.salesforce.com include:app.aventri.com include:amazonses.com ~all
PassportTLSDNSMXSPFDMARC

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