Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
posmc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 22:12:08 UTC · ↺ Refresh
MX Hostnames
- posmc-com.mail.protection.outlook.com
MX Priorities
- posmc-com.mail.protection.outlook.com: 10
A / AAAA Records
- 107.180.50.233 ↩ 233.50.180.107.host.secureserver.net
Mail Server IPs
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
pns1.cloudns.net support.cloudns.net 2024102202 7200 1800 1209600 3600
Primary NS (mname)
pns1.cloudns.net
Admin Email (rname)
support@cloudns.net
Serial
2024102202
Refresh
7200s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
pns2.cloudns.net
pns1.cloudns.net
pns4.cloudns.net
pns3.cloudns.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:12.184.217.192/29 ip4:108.234.199.160/29 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 ip4:12.184.217.192/29 ip4:108.234.199.160/29 include:spf.protection.outlook.com -all
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