bittner-krull.de

Valid Email Server
Domain Lookup › bittner-krull.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
bittner-krull.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 17:51:01 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

  • 31.220.124.138 (no PTR)

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 ns01.agenturserver.de support.mittwald.de 1774258217 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
1774258217
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns01.agenturserver.de
ns01.agenturserver.it
ns01.agenturserver.co

SPF Record

✓ Strict (-all)
v=spf1 a mx a:otc-de-spf.mms.t-systems-service.com include:agenturserver.de include:spf.mailing.easy.cz include:spf.crsend.com include:_spf_eucentral1.prod.hydra.sophos.com include:spf.EU.exclaimer.net ip4:80.158.5.88 -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • brevo-code:46181694fb0a4b1d32e8eb58260fcc68
  • DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmB3IGrAwdgsvRMmBaEn1N2W87/f0doZDdDvHRerZhLreB1O+KjJ5PZnaHDKJZTpVdNFEM6lf4yIGOINpFoVo5sZ2fsRUpCq/FcXc6+xxdhhJ1TnJkaofLWUD+1XQNfSSpOaxFpsfCnKrglJDyWB/WKtUSatX0JA/huxcv/nfk/LjpwMgZ3H+Y6lLMhyETUFYYDbnBH9tNbfYg1vj5AqhX4+Ds1JNo211hleec6iU3zLbd3VOyKsQ8m//t2feVE+ZKcEuszA/GU5keo5HEuBaoLOxbH24Q52HTThSxP++SGkrWKu9iBKbNMSAzQBh/F82OzLZ0wAVM75x+4WQfZVpdwIDAQAB
  • M5fDs6UINzbbcdktl3Q/v9dGe4kbE2cJyj2hi3Wu9OV5IuRu5w+Wyidx0OA56VYG0OXwKc+DDCrVUxgk06tEOg==
  • SPFv=spf1 a mx a:otc-de-spf.mms.t-systems-service.com include:agenturserver.de include:spf.mailing.easy.cz include:spf.crsend.com include:_spf_eucentral1.prod.hydra.sophos.com include:spf.EU.exclaimer.net ip4:80.158.5.88 -all
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