Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cla.aero
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 12:36:32 UTC · ↺ Refresh
MX Hostnames
- mxb.mailgun.org
- cla-aero.mail.protection.outlook.com
- mxa.mailgun.org
MX Priorities
- cla-aero.mail.protection.outlook.com: 0
- mxb.mailgun.org: 10
- mxa.mailgun.org: 10
A / AAAA Records
- 45.79.132.175
Mail Server IPs
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 34.160.13.42 ↩ 42.13.160.34.bc.googleusercontent.com
- 34.160.157.95 ↩ 95.157.160.34.bc.googleusercontent.com
SOA Record
Raw SOA
ns1.linode.com dns.cla.aero 2021003798 14400 14400 1209600 86400
Primary NS (mname)
ns1.linode.com
Admin Email (rname)
dns@cla.aero
Serial
2021003798
Refresh
14400s
Retry
14400s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns4.linode.com
ns2.linode.com
ns3.linode.com
ns5.linode.com
ns1.linode.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.mailersend.net include:spf0.cla.aero -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; sp=none; fo=1; adkim=r; aspf=r; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
default._domainkey
k1._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
8 records- MS=408C802BA98AB9AE681CBC19663A9896E5151F6D
- atlassian-sending-domain-verification=9c553caf-c07c-48a5-9b01-5ce3c5dd2bd6
- eBg3rwD9RST9fL8I9xZwVhDmpeeo0UX20+6T0vgDUZlblNDVI1p5A87diTRiW77JPj39GNTm506sjnx9a0dqfA==
- ntAYSOOM/Rzd2mBAx43mYvVKPi39PRK9feuXOUHIO0fPPcZRjk/fYqgmpYWsWi878DYZ82ax70ZSp8pA4zXNEg==
- google-site-verification=4FcQ_rmkO0vTe4vFF1ZNC2jW9Up_g03QXyUJ46DAr0s
- apple-domain-verification=nMCTLQCDNrGQ6kFI
- Foxit-domain-verification=f1c349660f6926ec15c8b647bce2d9dd
- SPFv=spf1 include:_spf.mailersend.net include:spf0.cla.aero -all
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