Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cosack.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 13:37:27 UTC · ↺ Refresh
MX Hostnames
- mail-in2.iphh.de
MX Priorities
- mail-in2.iphh.de: 20
A / AAAA Records
- 213.128.131.69 ↩ custweb6.iphh.net
- 2001:868::100:0:0:0:57 ↩ custweb6.iphh.net
Mail Server IPs
- 213.128.129.70 ↩ mail-in2.iphh.de
- 213.128.129.67 ↩ mail-in2.iphh.de
- 2001:868::100:0:0:0:1a ↩ mail-in2a.server.iphh.net
- 2001:868::101:0:0:0:5 ↩ mail-in2b.server.iphh.net
SOA Record
Raw SOA
ns1.iphh.de hostmaster.iphh.net 2025082101 43200 7200 2419200 7200
Primary NS (mname)
ns1.iphh.de
Admin Email (rname)
hostmaster@iphh.net
Serial
2025082101
Refresh
43200s
Retry
7200s
Expire
2419200s
Minimum TTL
7200s
Nameservers (NS)
ns1.iphh.de
ns3.iphh.net
ns2.iphh.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:213.128.129.38 ip4:213.128.129.39 a:mail.cosack.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_mail-out.iphh.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- hceF/EyW2laUrcMfylrio4VUG56YymyUyibPiOWxxLKycxtRLh9S4nAd120XtlWcBJya9ERsz47OdZsppeJSTA==
- SPFv=spf1 ip4:213.128.129.38 ip4:213.128.129.39 a:mail.cosack.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_mail-out.iphh.net -all
- 6gqvhdl7adgprkhjk3gqesra46
- have-i-been-pwned-verification=dweb_33rgmwc5bbubufwfdutbr7yl
- MS=ms48422502
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