Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jaeckering.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:10:16 UTC · ↺ Refresh
MX Hostnames
- smail-shatap3.dts-security.de
MX Priorities
- smail-shatap3.dts-security.de: 10
A / AAAA Records
- 92.79.107.156 (no PTR)
Mail Server IPs
- 81.89.246.138 ↩ smail-shatap3.dts-security.de
SOA Record
Raw SOA
ns1.digitalocean.com hostmaster.jaeckering.de 1773382443 10800 3600 604800 1800
Primary NS (mname)
ns1.digitalocean.com
Admin Email (rname)
hostmaster@jaeckering.de
Serial
1773382443
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns3.digitalocean.com
ns1.digitalocean.com
ns2.digitalocean.com
SPF Record
✓ Strict (-all)
v=spf1 a mx a:smail-shatap3.dts-security.de ip4:81.89.246.138 ip4:92.79.107.154 include:spf.protection.outlook.com include:_spf.recruiting-portal.com -all
📊 DNS lookups: 5/10
✓ 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; fo=1; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
3 records- SPFv=spf1 a mx a:smail-shatap3.dts-security.de ip4:81.89.246.138 ip4:92.79.107.154 include:spf.protection.outlook.com include:_spf.recruiting-portal.com -all
- twSTiM5yu40Gq6sU3+h8MOd4qsmL74l5JrpmmsazkOVbn7N4lIk8DQz2HlSwAKRbHojHoyxKnxgBFcVaT7ON3w==
- MS=ms82410790
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