Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nickerson-zwaan.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 22:39:38 UTC · ↺ Refresh
MX Hostnames
- nickersonzwaan-de02c.mail.protection.outlook.com
MX Priorities
- nickersonzwaan-de02c.mail.protection.outlook.com: 0
A / AAAA Records
- 83.133.96.158 ↩ server1.pro.vider.de
Mail Server IPs
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
dns.w3line.fr postmaster.nickerson-zwaan.de 2025100701 28800 7200 604800 86400
Primary NS (mname)
dns.w3line.fr
Admin Email (rname)
postmaster@nickerson-zwaan.de
Serial
2025100701
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
mail.w3line.fr
ext01.w3line.fr
dns.w3line.fr
SPF Record
✓ Strict (-all)
v=spf1 include:spf.fromearthtolife.net include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; aspf=s; adkim=s; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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
2 records- SPFv=spf1 include:spf.fromearthtolife.net include:spf.protection.outlook.com -all
- MS=ms78768766
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