Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
plank-optik.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 12:58:25 UTC · ↺ Refresh
MX Hostnames
- plankoptik-de01c.mail.protection.outlook.com
MX Priorities
- plankoptik-de01c.mail.protection.outlook.com: 0
A / AAAA Records
- 87.118.68.23 ↩ host14.gn2-server.de
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.host14.gn2-server.de support.gn2.de 2025040306 14400 1800 604800 3600
Primary NS (mname)
ns.host14.gn2-server.de
Admin Email (rname)
support@gn2.de
Serial
2025040306
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.host14.gn2-server.de
ns2.host14.gn2-server.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:83.246.107.0/24 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 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
3 records- plankoptik-de01c.mail.protection.outlook.com
- MS=ms99812667
- SPFv=spf1 ip4:83.246.107.0/24 include:spf.protection.outlook.com -all
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