Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cessna.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 01:30:17 UTC · ↺ Refresh
MX Hostnames
- cessna-com.mail.protection.outlook.com
MX Priorities
- cessna-com.mail.protection.outlook.com: 4
A / AAAA Records
- 151.165.212.156 (no PTR)
Mail Server IPs
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
cbru.br.ns.els-gms.att.net rm-hostmaster.ems.att.com 2006080536 1800 10000 604800 3600
Primary NS (mname)
cbru.br.ns.els-gms.att.net
Admin Email (rname)
rm-hostmaster@ems.att.com
Serial
2006080536
Refresh
1800s
Retry
10000s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
cbru.br.ns.els-gms.att.net
cmtu.mt.ns.els-gms.att.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mktomail.com include:exprtnat.textron.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
5 records- SPFv=spf1 include:spf.protection.outlook.com include:mktomail.com include:exprtnat.textron.com -all
- _7lo6ulz54h493o2octhp24yrrx6wi02
- _c6s7lzx1vajbj4rlc26evml3tiyyek9
- MS=ms23872449
- g0syLw4xq/2INAaYWn1ZXD5sKa8s7ihxaoowhiaqjlx1Msi0zi69RivQKyOoeVcqjsypDiSaq1LYaacVlGp33w==
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