Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heberlink.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 22:38:57 UTC · ↺ Refresh
MX Hostnames
- kerio.adminsystems.de
MX Priorities
- kerio.adminsystems.de: 10
A / AAAA Records
- 85.13.164.144 ↩ dd48238.kasserver.com
Mail Server IPs
- 46.4.107.163 ↩ kerio.adminsystems.de
- 2a01:4f8:141:425:1::2 ↩ kerio.adminsystems.de
SOA Record
Raw SOA
ns3.kasserver.com hostmaster.kasserver.com 2603021134 28800 7200 1209600 7200
Primary NS (mname)
ns3.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2603021134
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
ns3.kasserver.com
ns4.kasserver.com
SPF Record
✓ Strict (-all)
v=spf1 mx a -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- google-site-verification=nimWpY6JAioIs_mjrJwRic5PPiXbyVeC4plmHoK7s14
- SPFv=spf1 mx a -all
- google-site-verification=3lXyuDIDxaTjbPaz9ArfXEVz-kTwBqNGTqjfcyJOo2g
- MS=ms73900227
- apple-domain-verification=1rjod2oWHSvkMhWL
Full email verification for heberlink.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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