xs4rdr.nl

Valid Email Server
Domain Lookup › xs4rdr.nl

Domain Overview

DNS: ✓ 7d ago Checker: ✓ 7d ago
xs4rdr.nl
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-26 06:23:15 UTC · ↺ Refresh

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MX Hostnames

  • mx1.forwardemail.net
  • mx2.forwardemail.net

MX Priorities

  • mx2.forwardemail.net: 200
  • mx1.forwardemail.net: 20

A / AAAA Records

  • 217.160.0.213 ↩ 217-160-0-213.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 104.248.224.170 ↩ mx2.forwardemail.net
  • 121.127.44.59 ↩ mx2.forwardemail.net
  • 2a02:6ea0:d71e::1 ↩ mx2.forwardemail.net
  • 2604:a880:400:d1::cd:9001 ↩ mx2.forwardemail.net
  • 138.197.213.185 ↩ mx1.forwardemail.net
  • 121.127.44.56 ↩ mx1.forwardemail.net
  • 2604:a880:2:d0::306:1 ↩ mx1.forwardemail.net
  • 2a02:6ea0:d71e::2 ↩ mx1.forwardemail.net

SOA Record

Raw SOA shades18.rzone.de hostmaster.strato-rz.de 2024112236 86400 7200 604800 300
Primary NS (mname)
shades18.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2024112236
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

shades18.rzone.de
docks03.rzone.de

SPF Record

✓ Strict (-all)
v=spf1 a include:spf.forwardemail.net include:_spf.google.com -all
📊 DNS lookups: 3/10
✓ 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

4 records
  • DMARCv=DMARC1; p=none; sp=none;
  • forward-email=NDRiNGYzMmY1ZTEwMzkzNy01YmE3OTMzYzZmNzQzZjM0YjVlNTZmOGRjY2NjODdmNjc4ODdjZmRmNGYyYWExNDk1M2I2YmY0NTBiY2Y2YTIwMjI3ODkyODhmYzU1ZjlkYzA2MjEwMzRmOGEwZTczZmQxOTMxODA0MzAzOThkYzliYWNiMDk4OTc4ODRiZWZjYQ==
  • SPFv=spf1 a include:spf.forwardemail.net include:_spf.google.com -all
  • forward-email=YzEzOGI1NjU4MWQzYzIzMS0xZGRiZWQwMjc1ZmU3NzRmNjhhOWM4NWVjN2ZlZDBlMTdkYjljYTRkNzBmMzY1YzNlMzlkMzk0N2E2Y2FiNzA4YmM1NDk2OTA2Mjk3NGEwNDUwMzQxZTY1ODc1ZjIzNzY=
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