Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
c21nhr.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 23:14:19 UTC · ↺ Refresh
MX Hostnames
- c21nhr-com.mail.protection.outlook.com
MX Priorities
- c21nhr-com.mail.protection.outlook.com: 0
A / AAAA Records
- 52.36.242.46 ↩ ec2-52-36-242-46.us-west-2.compute.amazonaws.com
Mail Server IPs
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.easydns.com zone.easydns.com 1771345659 10800 3600 1209600 300
Primary NS (mname)
dns1.easydns.com
Admin Email (rname)
zone@easydns.com
Serial
1771345659
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
dns1.easydns.com
dns2.easydns.net
dns3.easydns.ca
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_includeSPF.erelocation.net include:spf.mandrillapp.com include:spfa.mailendo.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- mandrill_verify.brQiyCtutL34H7jFDDNa_Q
- SPFv=spf1 include:spf.protection.outlook.com include:_includeSPF.erelocation.net include:spf.mandrillapp.com include:spfa.mailendo.com -all
- MS=ms13677833
- SPFv=spf1 include:mailgun.org ~all
Full email verification for c21nhr.com
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