Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hennig-am.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 19:15:23 UTC · ↺ Refresh
MX Hostnames
- mx-02-eu-central-1.prod.hydra.sophos.com
- mx-01-eu-central-1.prod.hydra.sophos.com
MX Priorities
- mx-01-eu-central-1.prod.hydra.sophos.com: 10
- mx-02-eu-central-1.prod.hydra.sophos.com: 20
A / AAAA Records
- 212.132.80.128 ↩ hennig-u6w4.crossconcept.host
- 2a02:247a:201:2d00::1 ↩ hennig-u6w4.crossconcept.host
Mail Server IPs
- 18.159.80.41 ↩ ec2-18-159-80-41.eu-central-1.compute.amazonaws.com
- 52.57.183.85 ↩ ec2-52-57-183-85.eu-central-1.compute.amazonaws.com
SOA Record
Raw SOA
dns01.crossconceptdns.de hostmaster.crossconcept.net 2025121010 43200 7200 1209600 86400
Primary NS (mname)
dns01.crossconceptdns.de
Admin Email (rname)
hostmaster@crossconcept.net
Serial
2025121010
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns03.crossconceptdns.de
dns04.crossconceptdns.de
dns01.crossconceptdns.de
dns02.crossconceptdns.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.hennig-am.de include:_spf_eucentral1.prod.hydra.sophos.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
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- apple-domain-verification=MlnKOM5Dq2yYTqw0
- sophos-domain-verification=2f9cf95274257435a64eb455b279042cfd62ff31
- MS=210109911D412581E3968DD52B428E2528C4CC87
- SPFv=spf1 a mx include:spf.hennig-am.de include:_spf_eucentral1.prod.hydra.sophos.com include:spf.protection.outlook.com -all
- atlassian-domain-verification=P1ZRsRD/QLTAnFCq3VzH65XmbYeBq4qA8Ra0GLVrdOIcvGLxx2/vYfP3wu4ocruL
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for hennig-am.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits