Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
knuth.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 14:23:44 UTC · ↺ Refresh
MX Hostnames
- knuth-de.mail.protection.outlook.com
MX Priorities
- knuth-de.mail.protection.outlook.com: 0
A / AAAA Records
- 68.183.240.247 (no PTR)
Mail Server IPs
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.addix.de kristian\.knuth.knuth.de 2026021801 10800 3600 604800 10800
Primary NS (mname)
ns1.addix.de
Admin Email (rname)
kristian\@knuth.knuth.de
Serial
2026021801
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns2.addix.de
ns1.addix.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:185.19.233.130/29 ip4:192.168.0.0/24 ip4:192.168.100.0/24 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:servers.mcsv.net include:_spf.salesforce.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 216 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- SPFv=spf1 mx ip4:185.19.233.130/29 ip4:192.168.0.0/24 ip4:192.168.100.0/24 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:servers.mcsv.net include:_spf.salesforce.com ~all
- brevo-code:39ef8849f34b64f9691ee8d9bfbbae3d
- google-site-verification=soKIiWiVRg3MmsvKsTPlAxki4_dAwnL4DHZBOq2PKRA
- apple-domain-verification=qyxKhfjzLkOLmdQJ
- google-site-verification=ou_GJr4zl6ewgnGxUq87RYkxBMP_D_j90LV2dKJVvGA
Full email verification for knuth.de
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