Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
airtechofhouston.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 11:14:33 UTC · ↺ Refresh
MX Hostnames
- airtechofhouston-com.mail.protection.outlook.com
MX Priorities
- airtechofhouston-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-04.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-04.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns3-04.azure-dns.org
ns4-04.azure-dns.info
ns1-04.azure-dns.com
ns2-04.azure-dns.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:amazonses.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; ruf=mailto:[email protected]; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
11 records- google-site-verification=J8Z2yskQ6sAQimVfaSLOw_a0w6ItOvC_tLDm_hgDvbQ
- google-site-verification=-GMlU6q-Jp3KlIb9Ol4IeycZsFshMXQpZ65LIl6LS3M
- apple-domain-verification=FJxvhVATg5XLPN97
- SPFv=spf1 include:spf.protection.outlook.com include:amazonses.com -all
- google-site-verification=jUaPXcz5lBsyJTzOUh2e7do0FAfX_pRjcy6M-uF7p9A
- qhhcskea7lnhne3n0v46e2ba7n
- amazonses:kxKqzovyahhMTUwRWnWn/Hj+xzUB5ihplVQX1IEYbzQ=
- MS=ms85677172
- \"v=spf1 ip4:104.225.208.122 include:spf.protection.outlook.com mx a:amazonses.com -all\"
- zapier-domain-verification-challenge=044ec47f-1861-46de-b094-e349f3b6ca63
- google-site-verification=4pHZgq9AsBhX2mxMh3OiOQ6Wg93Dvu2_M-oY_ag7wnk
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