Domain Overview
DNS: ✓ 11h ago
Checker: ✓ 11h ago
airtest.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-10-10 19:33:06 UTC · ↺ Refresh
MX Hostnames
- airtest-us.mail.protection.outlook.com
MX Priorities
- airtest-us.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.40.64 (no PTR)
- 172.67.178.42 (no PTR)
- 2606:4700:3031::ac43:b22a
- 2606:4700:3031::6815:2840
Mail Server IPs
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.42.87 ↩ mail-co2pr03cu00207.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f910::1 ↩ mail-cy3pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f903::3 ↩ mail-mn0pr04cu00203.inbound.protection.outlook.com
SOA Record
Raw SOA
todd.ns.cloudflare.com dns.cloudflare.com 2415736210 10000 2400 604800 1800
Primary NS (mname)
todd.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2415736210
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
yolanda.ns.cloudflare.com
todd.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:50.125.1.34 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;pct=100;adkim=r;aspf=r;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- apple-domain-verification=fU0xxFQi2pwWauKX
- SPFv=spf1 ip4:50.125.1.34 include:spf.protection.outlook.com -all
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 · Customize →
See demo & docs
Deep verification
Full email verification for airtest.us
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits