Domain Overview
DNS: ✓ 19d ago
Checker: ✓ 19d ago
tcc-leerling.nl
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-22 07:22:12 UTC · ↺ Refresh
MX Hostnames
- tccleerling-nl0i.mail.protection.outlook.com
MX Priorities
- tccleerling-nl0i.mail.protection.outlook.com: 10
A / AAAA Records
- 157.55.59.213 (no PTR)
Mail Server IPs
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
nsauth1.bit.nl hostmaster.bit.nl 2024122401 28800 7200 604800 3600
Primary NS (mname)
nsauth1.bit.nl
Admin Email (rname)
hostmaster@bit.nl
Serial
2024122401
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
nsauth2.bit.nl
nsauth3.bit.org
nsauth1.bit.nl
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.hostedwise.nl -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
5 records- adobe-idp-site-verification=678cc7c5aa9ddc43c617e9824cc3ed4b609e391609dbf339b9c55406ce28a899
- SPFv=spf1 include:spf.protection.outlook.com include:spf.hostedwise.nl -all
- CARME
- MS=ms23142810
- 4bdwfq9aNcxB6v/vbOz/74bcmq+lpWtUUWSeIU3FM6AWU2jJJuUfNgE52zAhi/fDhmiA9szZ6hzl+ltGpD5+rg==
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