Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
kerbest.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-23 00:48:25 UTC · ↺ Refresh
MX Hostnames
- kerbest-com.mail.protection.outlook.com
MX Priorities
- kerbest-com.mail.protection.outlook.com: 0
A / AAAA Records
- 147.93.92.105 (no PTR)
Mail Server IPs
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.145 ↩ mail-am6pr02cu00301.inbound.protection.outlook.com
- 52.101.91.159 ↩ mail-matpr04cu00207.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca48::10 ↩ mail-miypr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca48::e ↩ mail-miypr03cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1125.ui-dns.com hostmaster.1und1.com 2017060131 28800 7200 604800 600
Primary NS (mname)
ns1125.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060131
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1119.ui-dns.de
ns1019.ui-dns.org
ns1040.ui-dns.biz
ns1125.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:90.160.19.94 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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 ip4:90.160.19.94 include:spf.protection.outlook.com ~all
- zone-ownership-verification-e3b18dcbffc0dfe0384a0ad382d2a3ecb16ab27409baecbbcb6c46905454418d
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