Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sijbentandheelkunde.nl
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 02:21:14 UTC · ↺ Refresh
MX Hostnames
- sijbentandheelkunde-nl.mail.eo.outlook.com
- sijbentandheelkunde-nl.mail.protection.outlook.com
MX Priorities
- sijbentandheelkunde-nl.mail.eo.outlook.com: 20
- sijbentandheelkunde-nl.mail.protection.outlook.com: 10
A / AAAA Records
- 194.5.132.29
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.32
- 2a01:111:f403:ca04::e
- 2a01:111:f403:ca09::4
- 2a01:111:f403:ca09::6
- 2a01:111:f403:ca04::4
SOA Record
Raw SOA
ns1.webmix.nl monitor.hoasted.com 2026022502 3600 1800 1209600 86400
Primary NS (mname)
ns1.webmix.nl
Admin Email (rname)
monitor@hoasted.com
Serial
2026022502
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns3.webmix.nl
ns1.webmix.nl
ns2.webmix.nl
SPF Record
✓ Strict (-all)
v=spf1 +a +mx ip4:87.233.68.34 ip6:2001:9a8:0:98::34 include:spf.protection.outlook.com include:spf.myfasthosting.com include:spf.vertimart.nl -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
default._domainkey
mail._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- SPFv=spf1 +a +mx ip4:87.233.68.34 ip6:2001:9a8:0:98::34 include:spf.protection.outlook.com include:spf.myfasthosting.com include:spf.vertimart.nl -all
- MS=ms29851379
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 sijbentandheelkunde.nl
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits