Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
arlingtonortho.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 21:25:34 UTC · ↺ Refresh
MX Hostnames
- arlingtonortho-com.mail.protection.outlook.com
MX Priorities
- arlingtonortho-com.mail.protection.outlook.com: 0
A / AAAA Records
- 216.128.128.61 ↩ 216.128.128.61.vultrusercontent.com
Mail Server IPs
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
SOA Record
Raw SOA
mark.ns.cloudflare.com dns.cloudflare.com 2399387181 10000 2400 604800 1800
Primary NS (mname)
mark.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399387181
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
mark.ns.cloudflare.com
marlowe.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:helpscoutemail.com include:_spf.psm.knowbe4.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; fo=1; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
5 records- SPFv=spf1 include:helpscoutemail.com include:_spf.psm.knowbe4.com include:spf.protection.outlook.com ~all
- 0ed1fe018a8caa2076300047049da5086586e1552a
- MS=ms77584066
- adobe-idp-site-verification=250e151b62668b1c43344a2b21f27a50dc1fe636979293d32058972e6ed9b4f8
- knowbe4-site-verification=ac24bc6e975369d4d049f3d5c06b0709
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 arlingtonortho.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits