costabel.de

Valid Email Server
Domain Lookup › costabel.de

Domain Overview

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

Checked via [email protected] · 2026-03-18 10:25:50 UTC · ↺ Refresh

MX Hostnames

  • securemail.costabel.de

MX Priorities

  • securemail.costabel.de: 100

A / AAAA Records

  • 92.205.54.112 ↩ sh23034.ispgateway.de
  • 2a00:1169:103:7610:: ↩ sh23034.ispgateway.de

Mail Server IPs

  • 178.13.239.151 ↩ business-178-013-239-151.static.arcor-ip.net

SOA Record

Raw SOA ns81.domaincontrol.com dns.jomax.net 2026030803 28800 7200 604800 600
Primary NS (mname)
ns81.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030803
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns81.domaincontrol.com
ns82.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

6 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • google-site-verification=svdbt3QmTbRQNtpCqjyB7g4Ep7A2X87IH5bRCNy9AeU
  • 16ik3v1mj1f125i4tra3s9ksh
  • google-site-verification=1DdEzJ12oVJcstQ_y18Q6AkiUFKF3-Iny693gZwV6u0
  • MS=ms12887357
  • p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwNBLA6fUPbtAg7YtiE7S4vQpIqTvwl1hqnCwPjri1emyrTroKzHis4hn+1GeGpzVLP1mr7DJQDYvo0bvudSZyizr4zYhBbW96Oa//di3bYTKV9MHYXeToB0rNVik9t2yZjHfyJcr5yyXnuHDyvcv+aoghDOZB1MBucOXYhmKyGnOw8dx/4LUMRGM/Trfw7JAQNj3b9LhmKXVA9" "/tCNhCW5POrR7CJSJB+Qf6O/msAOHgD1ijUDfWPTy22U9n5W+8HL5NZ+SvqhkaW8kTSqqm7TptM3K1Qc1kyAxu2oa4/SU0EhdE9ndluzBD8li6RWkufU4rY9VriJkYcSt4/BbbTwIDAQAB
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