Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
doi.gov
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 01:38:27 UTC · ↺ Refresh
MX Hostnames
- doi-gov.mail.protection.outlook.com
MX Priorities
- doi-gov.mail.protection.outlook.com: 0
A / AAAA Records
- 23.196.3.176 ↩ a23-196-3-176.deploy.static.akamaitechnologies.com
- 23.196.3.196 ↩ a23-196-3-196.deploy.static.akamaitechnologies.com
- 2600:141b:1c00:32::17d1:4822
- 2600:141b:1c00:32::17d1:480e
Mail Server IPs
- 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
- 52.101.11.12 ↩ mail-sa9pr09cu00104.inbound.protection.outlook.com
- 52.101.8.52 ↩ mail-ds0pr09cu00104.inbound.protection.outlook.com
- 52.101.8.50 ↩ mail-dm6pr09cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f904:: ↩ mail-dm6pr09cu00200.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
SOA Record
Raw SOA
liz.ns.cloudflare.com dns.cloudflare.com 2399502207 10000 2400 604800 1800
Primary NS (mname)
liz.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399502207
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
liz.ns.cloudflare.com
west.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:137.227.82.0/26 ip4:137.227.134.0/26 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:spf.protection.outlook.com ip4:137.227.82.0/26 ip4:137.227.134.0/26 -all
- _k93oqxa56xlshtth9cu5z18rhbf27n5
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