rbumc.com

Valid Email Server
Domain Lookup › rbumc.com

Domain Overview

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

Checked via [email protected] · 2026-03-17 19:30:00 UTC · ↺ Refresh

MX Hostnames

  • rbumc-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 185.230.63.107 ↩ unalocated.63.wixsite.com

Mail Server IPs

  • 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
  • 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com 11 21600 3600 259200 300
Primary NS (mname)
ns-cloud-b1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
11
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s

Nameservers (NS)

ns-cloud-b2.googledomains.com
ns-cloud-b3.googledomains.com
ns-cloud-b4.googledomains.com
ns-cloud-b1.googledomains.com

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

✗ 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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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