tfa-dostmann.de

Valid Email Server
Domain Lookup › tfa-dostmann.de

Domain Overview

DNS: ✓ 8d ago Checker: ✓ 8d ago
tfa-dostmann.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 15:07:11 UTC · ↺ Refresh

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MX Hostnames

  • mx-01-eu-central-1.prod.hydra.sophos.com
  • mx-02-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

  • 217.160.0.17 ↩ 217-160-0-17.elastic-ssl.ui-r.com

Mail Server IPs

  • 18.193.60.145 ↩ ec2-18-193-60-145.eu-central-1.compute.amazonaws.com
  • 3.73.46.24 ↩ ec2-3-73-46-24.eu-central-1.compute.amazonaws.com

SOA Record

Raw SOA ns1.rox.net dns.rockenstein.de 2025041001 10800 3600 604800 3600
Primary NS (mname)
ns1.rox.net
Admin Email (rname)
dns@rockenstein.de
Serial
2025041001
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns.hrb.de
ns1.rox.net
ns2.rox.net

SPF Record

✓ Strict (-all)
v=spf1 a mx a:relay-eu-central-1.prod.hydra.sophos.com ip4:217.91.159.184 ip4:213.144.15.173 ip4:213.214.0.0/26 ip4:212.63.85.192/26 include:_spf_euwest1.prod.hydra.sophos.com include:_spf_eucentral1.prod.hydra.sophos.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • DMARCv=DMARC1; p=none;
  • SPFv=spf1 a mx a:relay-eu-central-1.prod.hydra.sophos.com ip4:217.91.159.184 ip4:213.144.15.173 ip4:213.214.0.0/26 ip4:212.63.85.192/26 include:_spf_euwest1.prod.hydra.sophos.com include:_spf_eucentral1.prod.hydra.sophos.com -all
  • atlassian-domain-verification=L7riTRRs3NeNhtkEVH1p39oweuY0UPY88ekyNvaN44pPisq5qXKXqJkYF9FnwAhC
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