Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
custmcurb.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 19:49:45 UTC · ↺ Refresh
MX Hostnames
- custmcurb-com.mail.protection.outlook.com
MX Priorities
- custmcurb-com.mail.protection.outlook.com: 0
A / AAAA Records
- 162.241.143.138 ↩ 162-241-143-138.unifiedlayer.com
Mail Server IPs
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.datamartinc.org webadmin.datamartinc.com 2026021001 3600 1800 1209600 86400
Primary NS (mname)
ns1.datamartinc.org
Admin Email (rname)
webadmin@datamartinc.com
Serial
2026021001
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.datamartinc.org
ns1.datamartinc.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:199.244.76.0/24 ip4:207.126.101.0/25 ip4:209.59.154.89 ip4:174.121.35.98 include:spf.protection.outlook.com +ip4:192.185.161.22 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 ip4:199.244.76.0/24 ip4:207.126.101.0/25 ip4:209.59.154.89 ip4:174.121.35.98 include:spf.protection.outlook.com +ip4:192.185.161.22 -all
- MS=ms86476602
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