Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
elkb.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 11:16:15 UTC · ↺ Refresh
MX Hostnames
- elkb-de.mail.protection.outlook.com
MX Priorities
- elkb-de.mail.protection.outlook.com: 100
A / AAAA Records
- 194.97.148.1 ↩ intranet.elkb.org
Mail Server IPs
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0.de.colt.net eudnsmaster.colt.net 2025100100 10800 3600 1209600 10800
Primary NS (mname)
ns0.de.colt.net
Admin Email (rname)
eudnsmaster@colt.net
Serial
2025100100
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
ns0.de.colt.net
ns8.colt.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.elkb.de include:spf1.services-syntax.com include:spf.protection.outlook.com include:spf.crsend.com include:_spf-saas.rubicon.eu ip6:2603:10a6:20b:3f9::23 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; sp=none; fo=0:1:d:s; pct=100; ri=86400; adkim=r; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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- MS=E8783E143A16936628A1FC381F6527ED46BC092C
- brevo-code:9c2ca32a3fbbe94013e234e828b15f61
- 7U75Omam58YiR7fic7eknanksc5PxRSKkUocB2hiG9ixnxS7b0skeWt47yzA19D4RN301Jjvhgdtxgl6d/pipQ==
- swisssign-check=M7lAi3OAePw2Sv7DFolcq1s9vMY
- SPFv=spf1 include:spf.elkb.de include:spf1.services-syntax.com include:spf.protection.outlook.com include:spf.crsend.com include:_spf-saas.rubicon.eu ip6:2603:10a6:20b:3f9::23 -all
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