Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dr-meyer-gutknecht.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 20:27:15 UTC · ↺ Refresh
MX Hostnames
- cp3.cluster.hallo-it.de
MX Priorities
- cp3.cluster.hallo-it.de: 0
A / AAAA Records
- 37.202.2.250 ↩ r26440.agenturserver.it
- 2a03:2a00:1200::1:0:0:3987 ↩ r26440.agenturserver.it
Mail Server IPs
- 167.235.82.18 ↩ cp3.cluster.hallo-it.de
SOA Record
Raw SOA
ns01.agenturserver.de support.mittwald.de 2025110502 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
2025110502
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns01.agenturserver.co
ns01.agenturserver.de
ns01.agenturserver.it
SPF Record
✓ Strict (-all)
v=spf1 a mx a:cp3.cluster.hallo-it.de include:spf.smtp2go.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=0:1:d:s
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 119 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a mx a:cp3.cluster.hallo-it.de include:spf.smtp2go.com -all
- DKIMv=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5RY8qZAPshQYal0jnfQ0vGqNznkryhZBNRNKjwf63asjy44a9skyqHUZX9/3FOarjij2RoqO1ne MuN8pjuwQ4y5MzxBnJ4AS7TCu2nWGudBzlFRbN7vp+E0OL9FiaML3/ WHMEe3fV6ZyAO+PzeuxfIet5rAw9zUlGrLP87L2ituWBTOQr1eXL4kwDxRQTv5G8x75Zx5lrokJMJnuBMFrsDsCJ3NpIdACBIB9weZ+NWdANmHdGPwbsA wAIoDRs1Yx66K24ilLd6gUCQgIPx9XqoTW/ZyPdxpXPk92yBUejb/C0Ohgwb42LPRB/60ZICiuyvU7RIopMfaW2YJSPlR5/wIDAQAB;
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