rubycotax.com

Valid Email Server
Domain Lookup › rubycotax.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rubycotax.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 15:29:17 UTC · ↺ Refresh

MX Hostnames

  • rubycotax-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 23.239.28.248 ↩ 23-239-28-248.ip.linodeusercontent.com
  • 2600:3c00::f03c:94ff:fe22:1b00 (no PTR)

Mail Server IPs

  • 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA ns31.domaincontrol.com dns.jomax.net 2024090901 28800 7200 604800 600
Primary NS (mname)
ns31.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024090901
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns31.domaincontrol.com
ns32.domaincontrol.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:70.166.190.50 include:transmail.net include:zcsend.net include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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

2 records
  • MS=ms57044876
  • SPFv=spf1 ip4:70.166.190.50 include:transmail.net include:zcsend.net include:spf.protection.outlook.com ~all
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