Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
idt-biologika.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 09:26:13 UTC · ↺ Refresh
MX Hostnames
- mail1.idt-biologika.de
- mail2.idt-biologika.de
MX Priorities
- mail2.idt-biologika.de: 20
- mail1.idt-biologika.de: 10
A / AAAA Records
- 85.13.144.225 ↩ dd25726.kasserver.com
Mail Server IPs
- 151.189.125.167 ↩ mail2.idt-biologika.de
- 145.253.234.36 ↩ mail1.idt-biologika.de
SOA Record
Raw SOA
ns1.arcor-ip.de hostmaster.adm.arcor.net 2025062400 28800 14400 1814400 7200
Primary NS (mname)
ns1.arcor-ip.de
Admin Email (rname)
hostmaster@adm.arcor.net
Serial
2025062400
Refresh
28800s
Retry
14400s
Expire
1814400s
Minimum TTL
7200s
Nameservers (NS)
ns2.arcor-ip.de
ns3.arcor-ip.de
ns1.arcor-ip.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:145.253.234.36/28 ip4:83.221.248.166/28 ip4:151.189.125.167/32 include:spf.crsend.com include:spf.protection.outlook.com include:_spf.4me.com include:_spf.4me.qa -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 64 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
6 records- MS=2FCB31F3B1E630F66BD24F040DACC9924B04ABB4
- dell-technologies-domain-verification=idt-biologika.de_ee2ef029-7638-4224-adbf-72baa57312aa_1753360479
- SPFv=spf1 ip4:145.253.234.36/28 ip4:83.221.248.166/28 ip4:151.189.125.167/32 include:spf.crsend.com include:spf.protection.outlook.com include:_spf.4me.com include:_spf.4me.qa -all
- mindmanager-verification=cb755b89985428274245e0dce99d0556cceac3144ee39897e2faaa920146a974
- apple-domain-verification=NS4ECTotchnUzrkB
- MS=ms69504319
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