Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
chapinhall.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 00:29:10 UTC · ↺ Refresh
MX Hostnames
- chapinhall-org.mail.protection.outlook.com
MX Priorities
- chapinhall-org.mail.protection.outlook.com: 5
A / AAAA Records
- 151.101.66.159 (no PTR)
Mail Server IPs
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns35.worldnic.com namehost.worldnic.com 126020616 10800 3600 604800 3600
Primary NS (mname)
ns35.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126020616
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns36.worldnic.com
ns35.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:128.135.12.0/24 ip4:128.135.165.0/24 include:spf.protection.outlook.com include:sendgrid.net include:480c1a.workshop-spf.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
12 records- apple-domain-verification=701Uabc3mhYnhKjO
- globalsign-domain-verification=u1xGfyrDXGPn-t-RdzNq_5JlE_f_2hX4oMsByGV1F4
- contractworksverify=uWJs5PncFUesfXu4
- atlassian-domain-verification=a4FuDYmxa9raA5Y8Q/ESGldaVIgPR/9Z3OrQG2axcCtTgyELqK7L5JvUfgHYRaSf
- MS=ms24574694
- ZOOM_verify_XPJZaLR4TIN0dYNnXeyPLr
- spf.protection.outlook.com
- qbvgf4y28c9199f0xym4sr1v28dxrx10
- SPFv=spf1 ip4:128.135.12.0/24 ip4:128.135.165.0/24 include:spf.protection.outlook.com include:sendgrid.net include:480c1a.workshop-spf.net -all
- 5QZ24vRco/CsKw5N7X/+0/SGXtGQg4TjZE7cYtcvzp1R67NSYRociv5sYLyCGvM5N7DXWP8PXYhRNUp+i7qB2g==
- include:480c1a.workshop-spf.net
- smartsheet-site-validation=32crE6hkvtHYeZDOlEm4wW5dlDIeL3ys
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 chapinhall.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits