Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
willis.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 04:09:50 UTC · ↺ Refresh
MX Hostnames
- willistowerswatson-com.mail.protection.outlook.com
MX Priorities
- willistowerswatson-com.mail.protection.outlook.com: 10
A / AAAA Records
- 52.251.42.90 (no PTR)
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
SOA Record
Raw SOA
ha1.markmonitor.zone hostmaster.markmonitor.com 2026031404 86400 3600 2592000 172800
Primary NS (mname)
ha1.markmonitor.zone
Admin Email (rname)
hostmaster@markmonitor.com
Serial
2026031404
Refresh
86400s
Retry
3600s
Expire
2592000s
Minimum TTL
172800s
Nameservers (NS)
ha2.markmonitor.zone
ha3.markmonitor.zone
ha4.markmonitor.zone
ha1.markmonitor.zone
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
28 records- webexdomainverification.=35bb1f62-bbe7-4527-a14f-e184869f372f
- _globalsign-domain-verification=Oc5Vsy_Td0Pi0p7pYDOpoIqIs3mE2eP4JW7xvfA6BZ
- _globalsign-domain-verification=z91I_pTJp7W8mRPJvyvaotiuJP3qvYHERaVe8sZ9sE
- _globalsign-domain-verification=qAzbQ62TKsD7bx8kPBWxur7NTLxti_hCHoEeTcdhJB
- _globalsign-domain-verification=Gw383PuDBBBm9iKtS-wOagMkSyASxoV5sbZyAU9Ft8
- adobe-idp-site-verification=63bf1936-0971-4561-80df-fe7dddacf43a
- _globalsign-domain-verification=ero5hewwRhI-gs2chzD74naTLMYj5OgGqMaGJ_s_qd
- 6Be74tzbfAWB_-wTuJ2v61uP0jGcHEYA9pHEERYn7Wo
- _globalsign-domain-verification=X9-EsSIdR8sVV3BUmsu0BW-cw18cAo0-qcRDMQYYMu
- _globalsign-domain-verification=KEVF8HCa2R1bMtAp3TfPJymIgZnxUucO2wU3Wh2htD
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
- MS=ms69488898
- p207r2700x15cz784rs08bs78rpb1969
- e2ma-verification=k0vab
- globalsign-domain-verification=de2b9d1f5828daad6d3eeddd7d7d9317
- MS=ms22364466
- XRrmF/VnNXB+/dg1/ihoazvkgBmzmk1q679aR4aKf1tfX1uI1LEuBkO4yWx/qJWgLpCWo/Mkd2trwdlXjDmslw==
- a02e0935-98f9-457a-a94f-f656573535af
- _globalsign-domain-verification=u882xl_MqbKcq18LuCUCUODtTDK_ZL_EXOKd2YDDps
- google-site-verification=I8C6XCpzetItV-Y91eLAnbLN6ZKia7x0pZ9IWrSyZRk
- globalsign-domain-verification=88EDA484ABC13BFAD21BDFD7F0816BD5
- globalsign-domain-verification=C25C9CE9FA3799A5ED0C88CF47E0802D
- globalsign-domain-verification=68E9330698CDA7062146BA662DCCC67C
- globalsign-domain-verification=70EE0E4E5CAFA56704D4E032FA8D51C4
- _globalsign-domain-verification=u60LWxuznhU4rCQCzkruG9Xlp8UNrXOL5HLHGjc9ZY
- wa9kkJFpxffa5MSAYHtnvQuYkfAIb9YbjncQ4nBZb8sv1ynYtZrJvWKDtE3QlCXElgAkeKBIEizKNm7ZhwcxaA==
- _globalsign-domain-verification=qLSB45mGY8Bp36WGXZInywT2RFO4L4FcoQZRhs0etY
- _globalsign-domain-verification=3UTdhe4SPjJdqj7arPbi6Qbfu0-7zigMn6WnVxtv6D
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 willis.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits