r2rholding.nl

Valid Email Server
Domain Lookup › r2rholding.nl

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
r2rholding.nl
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 10:37:57 UTC · ↺ Refresh

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MX Hostnames

  • r2rholding-nl.mail.protection.outlook.com
  • fallback.yourfilter.nl
  • primary.yourfilter.nl

MX Priorities

  • fallback.yourfilter.nl: 20
  • r2rholding-nl.mail.protection.outlook.com: 0
  • primary.yourfilter.nl: 10

A / AAAA Records

  • 92.63.173.8
  • 2a05:1500:702:3:1c00:17ff:fe00:1411

Mail Server IPs

  • 185.223.33.25 ↩ se21-yh.route25.eu
  • 185.223.33.23 ↩ se23-yh.route25.eu
  • 185.103.241.22 ↩ se29-yh.route25.eu
  • 185.223.33.30 ↩ se16-yh.route25.eu
  • 185.223.33.26 ↩ se20-yh.route25.eu
  • 185.223.33.27 ↩ se19-yh.route25.eu
  • 185.103.241.23 ↩ se30-yh.route25.eu
  • 2a01:b941:2::23 ↩ se23-yh.route25.eu
  • 2a01:b941:2::29 ↩ se17-yh.route25.eu
  • 2a01:b941:2::24 ↩ se22-yh.route25.eu
  • 2a01:b941:2::28
  • 2a05:1500:702:9:1c00:7fff:fe00:5556
  • 2a05:1500:702:9:1c00:f0ff:fe00:5555
  • 2a01:b941:2::30
  • 52.101.68.16
  • 52.101.68.25
  • 52.101.68.39
  • 52.101.68.0
  • 2a01:111:f403:ca09::1
  • 2a01:111:f403:ca04::1
  • 2a01:111:f403:ca04::6
  • 2a01:111:f403:ca09::3
  • 185.223.33.24
  • 185.223.33.29
  • 185.223.33.28
  • 2a01:b941:2::26
  • 2a01:b941:2::25
  • 2a01:b941:2::27

SOA Record

Raw SOA ns1.argewebhosting.eu hostmaster.argeweb.nl 2026030801 10800 3600 604800 3600
Primary NS (mname)
ns1.argewebhosting.eu
Admin Email (rname)
hostmaster@argeweb.nl
Serial
2026030801
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns3.argewebhosting.nl
ns2.argewebhosting.com
ns1.argewebhosting.eu

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms18200855
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