r3hub.net

Valid Email Server
Domain Lookup › r3hub.net

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
r3hub.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 20:10:14 UTC · ↺ Refresh

MX Hostnames

  • r3hub-net.mail.protection.outlook.com

MX Priorities

  • r3hub-net.mail.protection.outlook.com: 0

A / AAAA Records

  • 198.54.115.25 ↩ server87-2.web-hosting.com

Mail Server IPs

  • 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
  • 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
  • 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA dns1.namecheaphosting.com cpanel.tech.namecheap.com 1716089985 86400 7200 3600000 86400
Primary NS (mname)
dns1.namecheaphosting.com
Admin Email (rname)
cpanel@tech.namecheap.com
Serial
1716089985
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

dns1.namecheaphosting.com
dns2.namecheaphosting.com

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +ip4:198.54.114.25 +ip4:10.10.10.12 include:spf.web-hosting.com +ip4:198.54.115.25 +include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ 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 +a +mx +ip4:198.54.114.25 +ip4:10.10.10.12 include:spf.web-hosting.com +ip4:198.54.115.25 +include:spf.protection.outlook.com -all
  • MS=ms40212809
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