Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
marbos.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 21:41:42 UTC · ↺ Refresh
MX Hostnames
- mailstream-eu1.mxrecord.io
MX Priorities
- mailstream-eu1.mxrecord.io: 10
A / AAAA Records
- 104.18.42.198 (no PTR)
- 172.64.145.58 (no PTR)
- 2a06:98c1:3101::6812:2ac6 (no PTR)
- 2606:4700:440c::ac40:913a (no PTR)
Mail Server IPs
- 172.65.245.214 (no PTR)
SOA Record
Raw SOA
aaron.ns.cloudflare.com dns.cloudflare.com 2400152637 10000 2400 604800 1800
Primary NS (mname)
aaron.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400152637
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
virginia.ns.cloudflare.com
aaron.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com mx:mail01.knauf.de mx:mail02.knauf.de ip4:82.210.238.38 ip4:82.210.238.39 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=s; adkim=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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- SPFv=spf1 include:spf.protection.outlook.com mx:mail01.knauf.de mx:mail02.knauf.de ip4:82.210.238.38 ip4:82.210.238.39 -all
- MS=ms25376970"
- adobe-idp-site-verification=d04a867d1bf7208af1d94176eb8572b5bc02de0f7f2788cf27fbba2467f69ef2
- knowbe4-site-verification=b54fb9e72807314d02f5234c0f0ac058
Full email verification for marbos.de
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