rwb.net

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rwb.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-22 01:37:20 UTC · ↺ Refresh

MX Hostnames

  • rwb-net.mail.protection.outlook.com

MX Priorities

  • rwb-net.mail.protection.outlook.com: 1

A / AAAA Records

  • 45.55.54.30 ↩ 1498769.cloudwaysapps.com

Mail Server IPs

  • 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA ns23.worldnic.com namehost.worldnic.com 125072910 10800 3600 604800 3600
Primary NS (mname)
ns23.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125072910
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns24.worldnic.com
ns23.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:216.201.190.194 ip4:160.153.0.64 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:spfa.cpmails.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

6 records
  • 2mfu7g76r5rttl29crpgldipup
  • 7j14nf8gauktf9hto0p8noama0
  • MS=ms37650706
  • autodesk-domain-verification=m0QGseV5g1z_UZsNgwCA
  • google-site-verification=09bQ9qBXLJd6JQsf82KdBn8mSHQkenmOh7R5j6AMgPk
  • SPFv=spf1 ip4:216.201.190.194 ip4:160.153.0.64 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:spfa.cpmails.com -all
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