Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
severins-sylt.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 13:41:11 UTC · ↺ Refresh
MX Hostnames
- severinssylt-de02b.mail.protection.outlook.com
MX Priorities
- severinssylt-de02b.mail.protection.outlook.com: 0
A / AAAA Records
- 31.24.146.137 ↩ p02.zechbau.hosting.plutex.de
Mail Server IPs
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.plutex.de domains.zech-group.com 2026030402 60 60 604800 60
Primary NS (mname)
ns1.plutex.de
Admin Email (rname)
domains@zech-group.com
Serial
2026030402
Refresh
60s
Retry
60s
Expire
604800s
Minimum TTL
60s
Nameservers (NS)
ns2.plutex.de
ns1.plutex.de
ns3.plutex.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:151.193.18.41 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 include:spf.myzechit.com include:_spf.rexx-suite.com include:spf.protection.outlook.com include:ltxmail.synxis.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
4 records- 4GzbmfGNybjx+63cHACu1+TI9OOF/HuLUhNlgiqH8idMgW+2rLf/QQStSwvLDqIrB6OH6CLpmS05lmOu3kSz7A==
- google-site-verification=FVmJ3_Uzd74CvCO95ze6E0Dpk683VAUdtR0y9hl9GLs
- MS=ms63025641
- SPFv=spf1 ip4:151.193.18.41 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 include:spf.myzechit.com include:_spf.rexx-suite.com include:spf.protection.outlook.com include:ltxmail.synxis.com -all
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