ibykus.de

Valid Email Server
Domain Lookup › ibykus.de

Domain Overview

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

Checked via [email protected] · 2026-04-02 17:44:58 UTC · ↺ Refresh

MX Hostnames

  • mail.ibykus.de

MX Priorities

  • mail.ibykus.de: 10

A / AAAA Records

  • 88.99.235.250 ↩ postfix.fourdegrees.de

Mail Server IPs

  • 145.253.125.1 ↩ mail.ibykus.de

SOA Record

Raw SOA ns1.arcor-ip.de hostmaster.adm.arcor.net 2026032300 28800 14400 1814400 7200
Primary NS (mname)
ns1.arcor-ip.de
Admin Email (rname)
hostmaster@adm.arcor.net
Serial
2026032300
Refresh
28800s
Retry
14400s
Expire
1814400s
Minimum TTL
7200s

Nameservers (NS)

ns2.arcor-ip.de
ns3.arcor-ip.de
ns1.arcor-ip.de

SPF Record

✓ Strict (-all)
v=spf1 mx a:rm01.ibykus.de ip4:87.115.115.99 ip4:109.71.20.40 ip4:213.191.34.106 include:ibykus.net include:24970962.spf05.hubspotemail.net include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; sp=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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
  • atlassian-sending-domain-verification=5533b77b-6681-488f-995d-33baea32c854
  • atlassian-domain-verification=rCuSNeFThbQlDEGE7eh3aNjJ/meDRyg29ceALZQATRfFkDkuSxuUbVP2i0VVUT0c
  • sophos-domain-verification=cc18e7ac70352891f7c93110adfe4e2261c092d76dbba8e8865c76ff4a22fa32
  • duo_sso_verification=XrbkFDn4XaNTxz9aQKniT4CegpvLS9PcZg6bIwGQL4kMTrPHzm8VMsJUIZtHXFY8
  • SPFv=spf1 mx a:rm01.ibykus.de ip4:87.115.115.99 ip4:109.71.20.40 ip4:213.191.34.106 include:ibykus.net include:24970962.spf05.hubspotemail.net include:spf.protection.outlook.com -all
  • google-site-verification=Jn8EnUI8Tm6gyTvWEcegBr0TBm4Y941ZyOIFk9OFJ6E
  • facebook-domain-verification=r4g2ghzocashp8nk7f8o591b0rzcjp
  • 8a797987663d4c238d1d70068ca26f64
  • openai-domain-verification=dv-AsaszeYHOxT214z3X9maIMD8
  • MS=ms25118025
  • miro-verification=d6e0c08b223d7cf8ce38de4dac39957c008daa35
  • 1gearpqkb58eht2567qf76kb75
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