Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cobru.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 16:43:17 UTC · ↺ Refresh
MX Hostnames
- cobru-co.mail.protection.outlook.com
MX Priorities
- cobru-co.mail.protection.outlook.com: 0
A / AAAA Records
- 104.26.15.242 (no PTR)
- 104.26.14.242 (no PTR)
- 172.67.69.237
- 2606:4700:20::ac43:45ed
- 2606:4700:20::681a:ff2
- 2606:4700:20::681a:ef2
Mail Server IPs
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
gwen.ns.cloudflare.com dns.cloudflare.com 2400486185 10000 2400 604800 1800
Primary NS (mname)
gwen.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400486185
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
gwen.ns.cloudflare.com
ray.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- amazonses:ncGyKTQz+VJQnd0IAavfgdajK7IpP3IWDEDntVYipGk=
- SPFv=spf1 include:spf.protection.outlook.com -all
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