Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kostaldesign.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 07:32:00 UTC · ↺ Refresh
MX Hostnames
- kostaldesign-com.mail.protection.outlook.com
MX Priorities
- kostaldesign-com.mail.protection.outlook.com: 10
A / AAAA Records
- 2.58.54.90 ↩ ws10.kostaldesign.com
- 2a0d:2146:8660:1::9d ↩ ws10.kostaldesign.com
Mail Server IPs
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
b.ns14.net support.kostaldesign.com 2026031297 10800 3600 1209600 10800
Primary NS (mname)
b.ns14.net
Admin Email (rname)
support@kostaldesign.com
Serial
2026031297
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
c.ns14.net
d.ns14.net
b.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ 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
2 records- MS=ms15849529
- SPFv=spf1 a mx include:spf.protection.outlook.com -all
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