Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mastbosch.nl
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 20:33:06 UTC · ↺ Refresh
MX Hostnames
- mastbosch-nl.mail.protection.outlook.com
MX Priorities
- mastbosch-nl.mail.protection.outlook.com: 0
A / AAAA Records
- 185.104.29.144 ↩ web0154.zxcs.nl
Mail Server IPs
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.forcez.nl hostmaster.forcez.nl 2026030901 14400 3600 604800 83604
Primary NS (mname)
dns1.forcez.nl
Admin Email (rname)
hostmaster@forcez.nl
Serial
2026030901
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
83604s
Nameservers (NS)
dns1.forcez.nl
dns2.forcez.nl
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a include:spf.protection.outlook.com include:_spf.inboxify.nl ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms21137625
- SPFv=spf1 mx a include:spf.protection.outlook.com include:_spf.inboxify.nl ~all
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 mastbosch.nl
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits