koester-bau.de

Valid Email Server
Domain Lookup › koester-bau.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
koester-bau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 07:40:57 UTC · ↺ Refresh

MX Hostnames

  • mailgate1.koester-bau.de
  • mailgate2.koester-bau.de

MX Priorities

  • mailgate2.koester-bau.de: 20
  • mailgate1.koester-bau.de: 10

A / AAAA Records

  • 195.60.121.149 ↩ www.koester-bau.de

Mail Server IPs

  • 91.25.230.126 ↩ mailgate2.koester-bau.de
  • 62.159.188.16 ↩ mailgate1.koester-bau.de

SOA Record

Raw SOA a.ns14.net marius\.wunner.internetx.com 2026010905 39940 14400 604800 43200
Primary NS (mname)
a.ns14.net
Admin Email (rname)
marius\@wunner.internetx.com
Serial
2026010905
Refresh
39940s
Retry
14400s
Expire
604800s
Minimum TTL
43200s

Nameservers (NS)

d.ns14.net
a.ns14.net
c.ns14.net
b.ns14.net

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:62.156.175.42 ip4:62.159.188.9 include:spf.protection.outlook.com include:spf.crsend.com include:spf.de.umantis.com include:spf.emailsignatures365.com include:spf.avency.de -all
📊 DNS lookups: 7/10
✓ 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

12 records
  • _uate6bmqoxgoijvha3n5l3hz0bhi07p
  • _vyqpj9njagwrl63c3i4dmvz44bldif6
  • docusign=c2a362f0-e485-49dc-b49a-c8ab37847f10
  • _3fq69c4j2yakl6aismr3w8uvnupk2xr
  • SPFv=spf1 a mx ip4:62.156.175.42 ip4:62.159.188.9 include:spf.protection.outlook.com include:spf.crsend.com include:spf.de.umantis.com include:spf.emailsignatures365.com include:spf.avency.de -all
  • google-site-verification=WA9DVPnRYaaO9VNkdC7khfuerd9lxo1IiCH_gj26xFY
  • d365mktkey=zPDrAUhpYZx8KnVs32faTW2ByK54qx0GKinDPpw1Q6Ex
  • _vaiwbhajryw47ih7cvrw4tptfry68p1
  • 1xhpjmU6yoe2P+bWje4XPUT+i2vWv5RzmGa9eq9Mhm0+YyC6BVqcpPkgtERu89t+zGhCi4sR97IRAN1pHl+xxg==
  • _n8thx5zhhorutr44ncbh97dryl0euei
  • d365mktkey=pvoLo5wUJTQa4C3Rf18LyxGBnZYmGRso7HbbFXeNuIAx
  • teamviewer-sso-verification=3c70ebb7f78b49a0a281510f639b9bda
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