Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
contabo.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 09:20:37 UTC · ↺ Refresh
MX Hostnames
- contabo-com.mail.protection.outlook.com
MX Priorities
- contabo-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.20.11.66 (no PTR)
- 104.20.10.66 (no PTR)
- 2606:4700:10::6814:a42
- 2606:4700:10::6814:b42
Mail Server IPs
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
ben.ns.cloudflare.com dns.cloudflare.com 2398348907 10000 2400 604800 1800
Primary NS (mname)
ben.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398348907
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
sue.ns.cloudflare.com
ben.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.contabo.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 6 found
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
3 records- SPFv=spf1 include:spf.contabo.com -all
- brevo-code:faf0833d97c1559b93d1af6f04a81f76
- google-site-verification=RAek-gZY-HwfVm5-q6iBWk6Q8joNWVHsMGwWGttWnjY
Full email verification for contabo.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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