Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hearthis.at
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 07:44:59 UTC · ↺ Refresh
MX Hostnames
- mx01.kundenserver.de
- mx00.kundenserver.de
MX Priorities
- mx00.kundenserver.de: 10
- mx01.kundenserver.de: 11
A / AAAA Records
- 172.67.75.158 (no PTR)
- 104.26.2.131 (no PTR)
- 104.26.3.131 (no PTR)
- 2606:4700:20::ac43:4b9e (no PTR)
- 2606:4700:20::681a:383 (no PTR)
- 2606:4700:20::681a:283 (no PTR)
Mail Server IPs
- 212.227.15.41 ↩ mx00.kundenserver.de
- 217.72.192.67 ↩ mx01.kundenserver.de
SOA Record
Raw SOA
lars.ns.cloudflare.com dns.cloudflare.com 2400065496 10000 2400 604800 1800
Primary NS (mname)
lars.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400065496
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lars.ns.cloudflare.com
lisa.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx a:hearthis.at ip4:176.9.94.147 ip6:2a01:4f8:121:4288::2 include:spf.mailjet.com include:spf.sendinblue.com include:_spf.kundenserver.de include:_spf-eu.ionos.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected],mailto:[email protected]; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
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- stripe-verification=ba1c7e02a7134345f9e6303de2ebbacb95d5da38dbacd713f2a3fca30e5b0ea3
- SPFv=spf1 a mx a:hearthis.at ip4:176.9.94.147 ip6:2a01:4f8:121:4288::2 include:spf.mailjet.com include:spf.sendinblue.com include:_spf.kundenserver.de include:_spf-eu.ionos.com -all
- yahoo-verification-key=R4XvZgVVAfxrHhr3toDM8ZuI/NcZntrX4OwnxVnVUNs=
- Sendinblue-code:1f20837fb569bebe31be270c5306d57f
- google-site-verification=lKt4IW71hPNzdYSrJXIqDl5ZC8sqpppJqoNtIqVOf1I
Full email verification for hearthis.at
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits