Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gpo.gov
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 02:37:28 UTC · ↺ Refresh
MX Hostnames
- gpo-gov.mail.protection.outlook.com
MX Priorities
- gpo-gov.mail.protection.outlook.com: 0
A / AAAA Records
- 162.140.14.82 (no PTR)
Mail Server IPs
- 52.101.8.50 ↩ mail-dm6pr09cu00202.inbound.protection.outlook.com
- 52.101.8.52 ↩ mail-ds0pr09cu00104.inbound.protection.outlook.com
- 52.101.11.12 ↩ mail-sa9pr09cu00104.inbound.protection.outlook.com
- 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f904::1 ↩ mail-ds0pr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f900::1 ↩ mail-blapr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90e::1 ↩ mail-sa9pr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f904:: ↩ mail-dm6pr09cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.gpo.gov dns.cloudflare.com 2400110193 10000 2400 604800 1800
Primary NS (mname)
ns1.gpo.gov
Admin Email (rname)
dns@cloudflare.com
Serial
2400110193
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns1.gpo.gov
ns2.gpo.gov
SPF Record
✓ Strict (-all)
v=spf1 ip4:18.224.245.68 ip4:162.140.252.206/31 ip4:162.140.64.208 ip4:162.140.254.17 ip4:149.72.255.63 ip4:54.240.65.177 ip4:50.209.159.117 ip4:52.251.53.57 ip4:149.72.240.220 ip4:162.140.252.10 ip4:162.140.67.10 ip4:174.129.192.189 include:everbridge.net include:spf.protection.outlook.com include:rnmk.com include:rp.oracleemaildelivery.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; pct=100; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
11 records- google-site-verification=x9XWRvd7M4WwMKAnRdWtWJxv9SgzmKWpnQiTENZi8Lk
- mfbf4rwc5jtnw7wl7g6psmmkvt4jq0xb
- sswc98trfnq947h6n2qxy0c8b4jtx16w
- SPFv=spf1 ip4:18.224.245.68 ip4:162.140.252.206/31 ip4:162.140.64.208 ip4:162.140.254.17 ip4:149.72.255.63 ip4:54.240.65.177 ip4:50.209.159.117 ip4:52.251.53.57 ip4:149.72.240.220 ip4:162.140.252.10 ip4:162.140.67.10 ip4:174.129.192.189 include:everbridge.net include:spf.protection.outlook.com include:rnmk.com include:rp.oracleemaildelivery.com -all
- 3ppq0glzx9jqptqm2vjr9408rrbj3bn4
- 83lgxldchk5t2k83vkpb41tpvnl2p334
- FveQ/soZoxZHlb+HOrJ9VLsSUa30XI8ortzCZQp3ZvzzW/dMT9oucMztwH/QslUP/l4aT/9Nk4/h+EXN6r4Mmw==
- adobe-idp-site-verification=ed70e46b8095ce3defd8cb71aee5597983f4c9c9d67ed30f18b74f4abcb09ab4
- apple-domain-verification=5Ad1n20NuPa7cxbN
- docker-verification=3c6296f4-c9d6-413d-95b3-1ed8783bc2d3
- e8WTiTGmBS/5MCn4qp7AW4LAs2em2qIm/uuHvmohKPPP2ZtDr2v84+17NJ4txIiFyMo9KtIJoNkYKpj1tGY5MA==
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