Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zenith.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 18:01:03 UTC · ↺ Refresh
MX Hostnames
- zenith-de.mail.protection.outlook.com
MX Priorities
- zenith-de.mail.protection.outlook.com: 0
A / AAAA Records
- 45.77.188.95 ↩ 45.77.188.95.vultrusercontent.com
Mail Server IPs
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1096.ui-dns.org hostmaster.1und1.com 2017060120 28800 7200 604800 600
Primary NS (mname)
ns1096.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060120
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1104.ui-dns.biz
ns1096.ui-dns.org
ns1050.ui-dns.de
ns1100.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:87.139.36.113 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 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
1 record- SPFv=spf1 ip4:87.139.36.113 include:spf.protection.outlook.com -all
Full email verification for zenith.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits