rjfnet.com

Valid Email Server
Domain Lookup › rjfnet.com

Domain Overview

DNS: ✓ 19d ago Checker: ✓ 19d ago
rjfnet.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-22 03:53:42 UTC · ↺ Refresh

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MX Hostnames

  • rjfnet-com.mail.protection.outlook.com

MX Priorities

  • rjfnet-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 98.103.33.69 ↩ syn-098-103-033-069.biz.spectrum.com

Mail Server IPs

  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.biz.rr.com hostmaster.charter.com 2025060000 43200 3600 2419200 3600
Primary NS (mname)
ns1.biz.rr.com
Admin Email (rname)
hostmaster@charter.com
Serial
2025060000
Refresh
43200s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

ns2.biz.rr.com
dns4.rr.com
ns1.biz.rr.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:12.221.96.250 ip4:98.103.33.66 include:_spf.google.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
google._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google

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

All TXT Records

2 records
  • SPFv=spf1 ip4:12.221.96.250 ip4:98.103.33.66 include:_spf.google.com include:spf.protection.outlook.com ~all
  • google-site-verification=vmmvlgcihqb6oeviu0ue30iat6oji4n8jyv9kckwp7k
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