Domain Overview
DNS: ✓ 10h ago
Checker: ✓ 10h ago
aircompressors.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 08:38:47 UTC · ↺ Refresh
MX Hostnames
- aircompressors-com.mail.protection.outlook.com
MX Priorities
- aircompressors-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.18.27.128 (no PTR)
- 104.18.26.128 (no PTR)
- 2606:4700::6812:1b80
- 2606:4700::6812:1a80
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
ian.ns.cloudflare.com dns.cloudflare.com 2400718024 10000 2400 604800 1800
Primary NS (mname)
ian.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400718024
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ian.ns.cloudflare.com
lilith.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:64.128.114.2 ip4:64.128.114.19 a:billtrust.com include:20687093.spf02.hubspotemail.net include:u7903245.wl246.sendgrid.net include:spf.hosting.americaneagle.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com ptr:billtrust.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
5 records- SPFv=spf1 ip4:64.128.114.2 ip4:64.128.114.19 a:billtrust.com include:20687093.spf02.hubspotemail.net include:u7903245.wl246.sendgrid.net include:spf.hosting.americaneagle.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com ptr:billtrust.com -all
- _8t4e14fc8o0pl1wv1udlnal2cncncx3
- apple-domain-verification=9_yVKcgHjakQ2Wb2OLWq754g_VxAbsTa461o8hr6RXQ
- atlassian-domain-verification=YfgtXYdPh3Lyo8LYKFFfTIt1aawNGpIb7NvPzXfYmPa5G9PFd06pMbiO9jqC33tL
- smartsheet-site-validation=ycFOisUKKd5W44uWpuyFKouM_FBRn3Ce
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 aircompressors.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits