mrk.de

Valid Email Server
Domain Lookup › mrk.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mrk.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-30 00:49:25 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: 100

A / AAAA Records

  • 185.215.156.99 ↩ r20511.agenturserver.it

Mail Server IPs

  • 52.57.183.85 ↩ ec2-52-57-183-85.eu-central-1.compute.amazonaws.com
  • 18.159.80.41 ↩ ec2-18-159-80-41.eu-central-1.compute.amazonaws.com

SOA Record

Raw SOA ns1121.ui-dns.de hostmaster.schlund.de 2017061406 28800 7200 604800 300
Primary NS (mname)
ns1121.ui-dns.de
Admin Email (rname)
hostmaster@schlund.de
Serial
2017061406
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1121.ui-dns.org
ns1121.ui-dns.biz
ns1121.ui-dns.de
ns1121.ui-dns.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:185.215.156.99 include:_spf.prod.hydra.sophos.com include:agenturserver.de -all
📊 DNS lookups: 2/10
✓ 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

5 records
  • MS=ms72520447
  • SPFv=spf1 ip4:185.215.156.99 include:_spf.prod.hydra.sophos.com include:agenturserver.de -all
  • apple-domain-verification=HKUhceRnH5qctmgU
  • sophos-domain-verification=afb3aa6eb9212691a2c45a510ebb63622e2ca0e3
  • sophos-domain-verification=76f7d674e353e35e3f7309f430a7815a888ed3ff887087c5ee4b4cbd123a69a6
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