kassbros.com

Valid Email Server
Domain Lookup › kassbros.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
kassbros.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 23:16:16 UTC · ↺ Refresh

MX Hostnames

  • kassbros-com.mail.protection.outlook.com

MX Priorities

  • kassbros-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 66.172.32.76 ↩ 76.dotxhosting.com

Mail Server IPs

  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
  • 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA ns11.constellix.com dns.constellix.com 2015010114 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010114
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns4.creativeinternet.com
ns1.creativeinternet.net
ns2.creativeinternet.net
ns3.creativeinternet.net
ns4.creativeinternet.net
ns5.creativeinternet.net
ns6.creativeinternet.net
ns7.creativeinternet.net
ns8.creativeinternet.net
ns1.creativeinternet.com
ns2.creativeinternet.com
ns3.creativeinternet.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx a include:spf.ellipticalhosting.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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
  • SPFv=spf1 mx a include:spf.ellipticalhosting.com include:spf.protection.outlook.com ~all
  • MS=ms50706244
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for kassbros.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits