arqum.de

Valid Email Server
Domain Lookup › arqum.de

Domain Overview

DNS: ✓ 2d ago Checker: ✓ 2d ago
arqum.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-08-02 20:23:09 UTC · ↺ Refresh

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MX Hostnames

  • arqum-de.mail.protection.outlook.com

MX Priorities

  • arqum-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 81.28.233.231 (no PTR)

Mail Server IPs

  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA docks12.rzone.de hostmaster.strato-rz.de 2020050923 86400 7200 604800 300
Primary NS (mname)
docks12.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050923
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

docks12.rzone.de
shades08.rzone.de

SPF Record

✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:spf.crsend.com include:_spf.strato.com ip4:81.28.233.231/32 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 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

7 records
  • SPFv=spf1 a mx include:spf.protection.outlook.com include:spf.crsend.com include:_spf.strato.com ip4:81.28.233.231/32 -all
  • vhn43n4g6shr377g8774sfrmxb9dwjvf
  • google-site-verification=95Pdv3Z0SWw9JXHQze6vj6dwleIMEvmJK6HRisWDaOg
  • google-site-verification=Bn0fX6_qCI8EkQ3K_BCBhH4vkK5O8ZbB2r1tyv0aevQ
  • atlassian-domain-verification=SxcxDW/l1Z3HQvcxUX1tPg0mouRSUH9q0Xwyf6AOaajfs9HXh5jvNUhrmzx/gBlk
  • MS=ms31075855
  • _cvwinyb2urdm47qkh5n0zu6r9lk8xlu
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