Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
air-sys.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 12:09:46 UTC · ↺ Refresh
MX Hostnames
- airsys-uk0i.mail.protection.outlook.com
MX Priorities
- airsys-uk0i.mail.protection.outlook.com: 10
A / AAAA Records
- 104.26.14.62 (no PTR)
- 172.67.71.92 (no PTR)
- 104.26.15.62
- 2606:4700:20::681a:e3e
- 2606:4700:20::ac43:475c
- 2606:4700:20::681a:f3e
Mail Server IPs
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
heidi.ns.cloudflare.com dns.cloudflare.com 2398956608 10000 2400 604800 1800
Primary NS (mname)
heidi.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398956608
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
nolan.ns.cloudflare.com
heidi.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:relay.mailchannels.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
4 records- MS=ms69834707
- google-site-verification=-VC4jCTe0_Nzoqcl5olIR1ENnVlRNNLcCulFg0qSNXk
- google-site-verification=RsnLEsnV3YVvMoCqn_Grg9TnmYu2CnI0CCOYisbW5oc
- SPFv=spf1 include:spf.protection.outlook.com include:relay.mailchannels.net -all
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