Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kustura.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 00:23:27 UTC · ↺ Refresh
MX Hostnames
- kustura-com.mail.protection.outlook.com
MX Priorities
- kustura-com.mail.protection.outlook.com: 0
A / AAAA Records
- 12.106.95.208 (no PTR)
Mail Server IPs
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.mydyndns.org zone-admin.dyndns.com 2007072440 10800 1800 604800 1800
Primary NS (mname)
ns1.mydyndns.org
Admin Email (rname)
zone-admin@dyndns.com
Serial
2007072440
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns3188.dns.dyn.com
ns2145.dns.dyn.com
ns4135.dns.dyn.com
ns1145.dns.dyn.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:autotask.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; sp=none; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
4 records- SPFv=spf1 include:spf.protection.outlook.com include:autotask.net -all
- MS=DCFE908E211C04A8583FA792A17D11F84B84EDF4
- 742eq0j88ip2v5fcd7sk7pgsi1
- google-site-verification=79JQ4gSf9T2mudyza-Uq5xbxx08XoUmxPapKqEytHu8
Full email verification for kustura.com
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