century21.mt

Valid Email Server
Domain Lookup › century21.mt

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
century21.mt
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 15:26:25 UTC · ↺ Refresh

MX Hostnames

  • century21-mt.mail.protection.outlook.com

MX Priorities

  • century21-mt.mail.protection.outlook.com: 1

A / AAAA Records

  • 104.21.88.188 (no PTR)
  • 172.67.152.45 (no PTR)
  • 2606:4700:3037::ac43:982d
  • 2606:4700:3030::6815:58bc

Mail Server IPs

  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA rosa.ns.cloudflare.com dns.cloudflare.com 2398572093 10000 2400 604800 1800
Primary NS (mname)
rosa.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398572093
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

rosa.ns.cloudflare.com
simon.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

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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
  • MS=ms10955559
  • SPFv=spf1 include:spf.protection.outlook.com -all
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