Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mail.nih.gov
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 16:09:11 UTC · ↺ Refresh
MX Hostnames
- nihcesxwayst01.hub.nih.gov
- nihcesxwayst06.hub.nih.gov
- nihcesxwayst05.hub.nih.gov
- nihcesxwayst02.hub.nih.gov
- nihcesxwayst04.hub.nih.gov
- nihcesxway.hub.nih.gov
- nihcesxway2.hub.nih.gov
- nihcesxway3.hub.nih.gov
- nihcesxwayst03.hub.nih.gov
- nihcesxway6.hub.nih.gov
- nihcesxway5.hub.nih.gov
- nihcesxway4.hub.nih.gov
MX Priorities
- nihcesxway.hub.nih.gov: 20
- nihcesxwayst06.hub.nih.gov: 10
- nihcesxwayst05.hub.nih.gov: 10
- nihcesxwayst04.hub.nih.gov: 10
- nihcesxwayst03.hub.nih.gov: 10
- nihcesxway6.hub.nih.gov: 10
- nihcesxway5.hub.nih.gov: 10
- nihcesxway4.hub.nih.gov: 10
- nihcesxway3.hub.nih.gov: 10
- nihcesxwayst02.hub.nih.gov: 20
- nihcesxwayst01.hub.nih.gov: 20
- nihcesxway2.hub.nih.gov: 20
A / AAAA Records
- 156.40.55.55
- 2607:f220:404:10d::9c28:3737
Mail Server IPs
- 128.231.90.123 ↩ nihcesxway.hub.nih.gov
- 2607:f220:404:8104::80e7:5a7b ↩ nihcesxway.hub.nih.gov
- 165.112.13.54 ↩ nihcesxwayst06.hub.nih.gov
- 2607:f220:402:1a01::a570:d36 ↩ nihcesxwayst06.hub.nih.gov
- 165.112.13.46 ↩ nihcesxwayst05.hub.nih.gov
- 2607:f220:402:1a01::a570:d2e ↩ nihcesxwayst05.hub.nih.gov
- 165.112.13.42 ↩ nihcesxwayst04.hub.nih.gov
- 2607:f220:402:1a01::a570:d2a ↩ nihcesxwayst04.hub.nih.gov
- 165.112.13.34 ↩ nihcesxwayst03.hub.nih.gov
- 2607:f220:402:1a01::a570:d22 ↩ nihcesxwayst03.hub.nih.gov
SOA Record
Raw SOA
nihblox6.nih.gov hostmaster.nih.gov 105289 10800 1080 2592000 900
Primary NS (mname)
nihblox6.nih.gov
Admin Email (rname)
hostmaster@nih.gov
Serial
105289
Refresh
10800s
Retry
1080s
Expire
2592000s
Minimum TTL
900s
Nameservers (NS)
ns3.nih.gov
ns2.nih.gov
ns.nih.gov
SPF Record
✓ Soft Fail (~all)
v=spf1 include:nih.gov include:amazonses.com include:spf-na.exlibrisgroup.com a:spf.servicenowservices.com include:everbridge.net ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ 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- ciscocidomainverification=1a70a38c52de24e25fec82a91b08055a3111df6423f235ca0d47367a9459c37c
- SPFv=spf1 include:nih.gov include:amazonses.com include:spf-na.exlibrisgroup.com a:spf.servicenowservices.com include:everbridge.net ~all
- cisco-ci-domain-verification=b3131368ff91c89c02c172284be19bae954302e39145d0fda3ccc93d6af4fdb
- apple-domain-verification=MzlvuJ5Asen9uqgS
- apple-domain-verification=dSpAYHkt7PF18WIu
- apple-domain-verification=QIzp6afYMTdIupJ6
- amazonses:fI+WEGpMxl8vsXAh7ZMnnBr8qwtoRuq6gD1qHQMtBhc=
- miro-verification=ce1878a9901e3785a9ee9302aaaf4b8f878ff042
- docker-verification=e2f243b7-5949-4890-a0e1-e41d35e23b11
- webexdomainverification.4C675B8A8FC5B136E053AB06FC0A3F65=1624d167-2f6c-46d8-a96b-228d2ad188a9
- ciscocidomainverification=1b32b084b0eb3ade21d6a521cfa1db73d2a787817950f96cf35fe67d6fa84685
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