rgbc.com

Valid Email Server
Domain Lookup › rgbc.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 16:31:37 UTC · ↺ Refresh

MX Hostnames

  • rgbc-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 3.33.139.32 ↩ aeedc42b70c898c66.awsglobalaccelerator.com

Mail Server IPs

  • 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
  • 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
  • 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com

SOA Record

Raw SOA ha1.markmonitor.zone hostmaster.markmonitor.com 2024112007 86400 3600 2592000 172800
Primary NS (mname)
ha1.markmonitor.zone
Admin Email (rname)
hostmaster@markmonitor.com
Serial
2024112007
Refresh
86400s
Retry
3600s
Expire
2592000s
Minimum TTL
172800s

Nameservers (NS)

ha3.markmonitor.zone
ha4.markmonitor.zone
ha1.markmonitor.zone
ha2.markmonitor.zone

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:162.144.155.169/32 ip4:131.226.0.191 ip4:131.226.0.155 ip4:131.226.0.141 ip4:50.16.242.65 include:spf.protection.outlook.com include:amazonses.com mx:workspacegeek.com mx:msbce.com mx:msbceservices.com mx:morningstarsoftware.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate 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 mx ip4:162.144.155.169/32 ip4:131.226.0.191 ip4:131.226.0.155 ip4:131.226.0.141 ip4:50.16.242.65 include:spf.protection.outlook.com include:amazonses.com mx:workspacegeek.com mx:msbce.com mx:msbceservices.com mx:morningstarsoftware.com ~all
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