Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
pnnl.gov
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 12:55:54 UTC · ↺ Refresh
MX Hostnames
- pnnl-gov.mail.protection.outlook.com
MX Priorities
- pnnl-gov.mail.protection.outlook.com: 0
A / AAAA Records
- 192.101.105.198 ↩ pnnl.gov
- 2620::50f0:2304:192:101:105:198 (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
- 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
- 52.101.11.12 ↩ mail-sa9pr09cu00104.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
- 2a01:111:f403:f904::1 ↩ mail-ds0pr09cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
adns1.es.net hostmaster.pnl.gov 233260 10800 1080 2592000 900
Primary NS (mname)
adns1.es.net
Admin Email (rname)
hostmaster@pnl.gov
Serial
233260
Refresh
10800s
Retry
1080s
Expire
2592000s
Minimum TTL
900s
Nameservers (NS)
adns2.es.net
adns1.es.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:180060.spf03.hubspotemail.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
29 records- apple-domain-verification=3xpn6CyXeSjkkU8i
- openai-domain-verification=dv-Ocannu7hserO4ZMri33EQL7U
- atlassian-domain-verification=rqRIJV6P5cPH8JywaSOAHQ/WxlSjbPpvhM7O1k6MSGQ6/s7CvEKdPdQ7IaGSRnZV
- avm0h27e304huf4sf93k2rfm3p
- 5CX/oPE5QEYl7W+/0Fo7TPCZK5whA9vVcRHOqQQfM7Nx7TCZepdyfl7szG6necyVGcnIilshkSH8Ry0u43rDGg==
- rq0egak2uqpo4v4qq78q23knq2
- openai-domain-verification=dv-HkVAcp3LGXMFFko37k0LR4eJ
- google-site-verification=UasZbdxLcnZmmUJ79a_onYAnRuCYiPJqGhCCl-AIV9A
- docusign=d708abb2-0d42-414a-8c74-630318d5cbf3
- la8ond3i42pk7s4bjrnu49o24p
- flexera-domain-verification-frkwjlexqhzdzggq
- anthropic-domain-verification-yt2e4d=Ufj3BR7L8IQAPI6s7SGAIbNyD
- 09EE-3B3A-7034-B78F-DA03-B5CE-8E43-8B32
- _aoba8zn09n9re3sf6mo79vubwguaq0t
- dtm-domain-verification=ePeIzlOrcSiLOqKMjyNz1Z174h8edFsJvsidFrPFmug
- ce0bhvup329h3snq4gqqim6t38
- docker-verification=94c505aa-3fa1-4974-8688-7cca5080c05d
- google-site-verification=sqJbWqH0yMWIXWsOKkAOx1-g217pYqYBOVbEMcBKWn8
- dweb_jiwh6v60eurxla76ct05j4vy
- vo3nvh0omg6k2lj26ibr9ih296
- _kdno381gxf04wdk7nc235pvw1qbsn2p
- SPFv=spf1 include:spf.protection.outlook.com include:180060.spf03.hubspotemail.net -all
- B29N9AF1C3QJR9NOSKM0VVROKG
- _2uyuf9m4omii9k2istpaamzlxxgyszv
- b7pcites4dbldmu6g04hnss6fl
- 496tdlnle1q6nfck34eumnordr
- atlassian-domain-verification=K86ZEXgNzvcyhN8IM69gMG92sefSUBkqWewEpchEyKLnQZFHsEDkSvZRySaIq6tF
- google-site-verification=GA-_2qm9VQb9DLfqvWoJAunyIT3cB_J2My93S2ShDkE
- 7lo8q7k5j0273rbqobujpev0o1
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for pnnl.gov
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits