Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
postelgroup.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 20:23:07 UTC · ↺ Refresh
MX Hostnames
- Postelgroup-com.mail.protection.outlook.com
MX Priorities
- postelgroup-com.mail.protection.outlook.com: 10
A / AAAA Records
- 198.185.159.144 (no PTR)
Mail Server IPs
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0.directnic.com hostmaster.ns0.directnic.com 2022011717 28800 14400 604800 86400
Primary NS (mname)
ns0.directnic.com
Admin Email (rname)
hostmaster@ns0.directnic.com
Serial
2022011717
Refresh
28800s
Retry
14400s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns2.directnic.com
ns1.directnic.com
ns0.directnic.com
ns3.directnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
3 records- MS=ms32718451
- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=28821D0CC709C3889091987151A52064981A638E
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