Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
paulinus.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 20:19:39 UTC · ↺ Refresh
MX Hostnames
- paulinus-de.mail.protection.outlook.com
MX Priorities
- paulinus-de.mail.protection.outlook.com: 10
A / AAAA Records
- 185.64.112.78 ↩ mediathek.zu.de
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.internet1.de hostmaster.internet1.de 2025110404 3600 900 1209600 1800
Primary NS (mname)
ns.internet1.de
Admin Email (rname)
hostmaster@internet1.de
Serial
2025110404
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
1800s
Nameservers (NS)
ns.internet1.de
ns2.internet1.de
ns3.internet1.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:195.243.153.28 ip4:62.159.82.139 include:spf.protection.outlook.com -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]; aspf=r; adkim=r; 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
3 records- MS=ms86928371
- google-site-verification=ZYC6dCQMzD_uMoopVBSVBtVHB8ptQAlpLiefQ5WFAGg
- SPFv=spf1 mx ip4:195.243.153.28 ip4:62.159.82.139 include:spf.protection.outlook.com -all
Full email verification for paulinus.de
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