seidensticker.de

Valid Email Server
Domain Lookup › seidensticker.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
seidensticker.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 10:56:48 UTC · ↺ Refresh

MX Hostnames

  • mail.bicos.de
  • mx451.bicos.net
  • mail2.bicos.de

MX Priorities

  • mail.bicos.de: 10
  • mx451.bicos.net: 1000
  • mail2.bicos.de: 100

A / AAAA Records

  • 35.186.222.116 ↩ 116.222.186.35.bc.googleusercontent.com

Mail Server IPs

  • 212.100.32.1 ↩ linbicos.bicos.de
  • 2a00:d58::1 ↩ linbicos.bicos.de
  • 2a00:d58::212:100:32:1 ↩ linbicos.bicos.de
  • 212.100.32.26 ↩ pyrit.bicos.de
  • 212.100.32.5 ↩ zitrin.bicos.de

SOA Record

Raw SOA linbicos.bicos.de root.linbicos.bicos.de 2026030402 28800 7200 604800 86400
Primary NS (mname)
linbicos.bicos.de
Admin Email (rname)
root@linbicos.bicos.de
Serial
2026030402
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns4.bicos.de
linbicos.bicos.de
ns2.bicos.de

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:212.100.32.0/21 ip4:212.21.170.196 ip4:212.21.170.182 ip4:220.241.107.136/28 include:spf.protection.outlook.com include:spf.pvs-rs.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 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

5 records
  • sophos-domain-verification=211482604f2c9f0aa970c3dd8bd78a323578a458
  • MS=ms86157077
  • trend-micro-v1-domain-verification.9cb4d6debf24be82e00d69d53111cf4c=7e5ada34-f4f5-4f6a-8678-34740e800371
  • SPFv=spf1 mx ip4:212.100.32.0/21 ip4:212.21.170.196 ip4:212.21.170.182 ip4:220.241.107.136/28 include:spf.protection.outlook.com include:spf.pvs-rs.com -all
  • KcbZf9wrWT8DOohpgR9MFmhWZAh7cnfA7XLta+dGto2iewXeqaQy+iGZWsJf9rziARZ+RrC1yI+HVjmwmi5f1g==
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