crb2.org

Valid Email Server
Domain Lookup › crb2.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
crb2.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 09:15:12 UTC · ↺ Refresh

MX Hostnames

  • mx-01-us-west-2.prod.hydra.sophos.com
  • mx-02-us-west-2.prod.hydra.sophos.com

MX Priorities

  • mx-02-us-west-2.prod.hydra.sophos.com: 10
  • mx-01-us-west-2.prod.hydra.sophos.com: 1

A / AAAA Records

  • 18.233.124.95 ↩ ec2-18-233-124-95.compute-1.amazonaws.com
  • 54.221.139.169 ↩ ec2-54-221-139-169.compute-1.amazonaws.com

Mail Server IPs

  • 44.234.222.180 ↩ ec2-44-234-222-180.us-west-2.compute.amazonaws.com
  • 50.112.72.129 ↩ ec2-50-112-72-129.us-west-2.compute.amazonaws.com
  • 34.215.37.215 ↩ ec2-34-215-37-215.us-west-2.compute.amazonaws.com

SOA Record

Raw SOA ns31.domaincontrol.com dns.jomax.net 2025060202 28800 7200 604800 600
Primary NS (mname)
ns31.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025060202
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns32.domaincontrol.com
ns31.domaincontrol.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:198.188.7.150 ip4:216.83.185.44 include:_spf.prod.hydra.sophos.com include:aesoponline.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
V=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

6 records
  • duo_sso_verification=kkK1RDP5k2hwTx8kK5TONrIr0acptjiw21nxRnmcYYgPv6ZusK5YAgoAVhDbtA8q
  • google-site-verification=G5ahp6d4AfrOyHKHPi7aRZ7mxo5dxxh2UvOtaWT6t54
  • SPFv=spf1 ip4:198.188.7.150 ip4:216.83.185.44 include:_spf.prod.hydra.sophos.com include:aesoponline.com ~all
  • v=verifydomain MS=3150195
  • MS=CA35059B0A9124118A03555EB306A77BA1539FD4
  • sophos-domain-verification=69be97a3e8fc16ee1bb0654d4d7c59b7b2be80c6
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