optik-delker.de

Valid Email Server
Domain Lookup › optik-delker.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
optik-delker.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 12:49:29 UTC · ↺ Refresh

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MX Hostnames

  • mailgateway2.cse-server.com
  • mailgateway.cse-server.com

MX Priorities

  • mailgateway.cse-server.com: 20
  • mailgateway2.cse-server.com: 10

A / AAAA Records

  • 217.160.0.104 ↩ 217-160-0-104.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::26d ↩ 2001-08d8-100f-f000-0000-0000-0000-026d.elastic-ssl.ui-r.com

Mail Server IPs

  • 45.135.203.166 ↩ mailgateway.cse-server.com
  • 2a04:e8c0:1:c01::166 ↩ mailgateway.cse-server.com
  • 178.63.241.133 ↩ mailgateway2.cse-server.com
  • 2a01:4f8:231:e401::133 ↩ mailgateway2.cse-server.com

SOA Record

Raw SOA ns1107.ui-dns.biz hostmaster.schlund.de 2017061348 28800 7200 604800 300
Primary NS (mname)
ns1107.ui-dns.biz
Admin Email (rname)
hostmaster@schlund.de
Serial
2017061348
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1107.ui-dns.de
ns1107.ui-dns.biz
ns1107.ui-dns.org
ns1107.ui-dns.com

SPF Record

✓ Strict (-all)
v=spf1 a mx include:_spf.perfora.net include:_spf.kundenserver.de include:spf.mailjet.com include:mail.zendesk.com ip4:185.60.20.0/24 ip4:54.246.203.105 include:cse-server.com a:delker-srv.cust.cse-server.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

1 record
  • SPFv=spf1 a mx include:_spf.perfora.net include:_spf.kundenserver.de include:spf.mailjet.com include:mail.zendesk.com ip4:185.60.20.0/24 ip4:54.246.203.105 include:cse-server.com a:delker-srv.cust.cse-server.com -all
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