donaldsonorganization.com

Valid Email Server
Domain Lookup › donaldsonorganization.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
donaldsonorganization.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 15:31:43 UTC · ↺ Refresh

MX Hostnames

  • us-smtp-inbound-1.mimecast.com
  • us-smtp-inbound-2.mimecast.com

MX Priorities

  • us-smtp-inbound-1.mimecast.com: 10
  • us-smtp-inbound-2.mimecast.com: 10

A / AAAA Records

  • 198.12.238.93 ↩ 93.238.12.198.host.secureserver.net

Mail Server IPs

  • 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com

SOA Record

Raw SOA ns27.domaincontrol.com dns.jomax.net 2026011301 28800 7200 604800 600
Primary NS (mname)
ns27.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026011301
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns28.domaincontrol.com
ns27.domaincontrol.com

SPF Record

✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:72.52.133.135 include:us._netblocks.mimecast.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

✗ 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
  • 0ed1fe018af3bdcc33adfc461996b47810b6129a70
  • alfkuisloesjlne99b8jar3kmc
  • sophos-domain-verification=87718e92103283198ee3f8840972435ae13ea1ddaee05b903f6e9a88161c9b6a
  • SPFv=spf1 +a +mx +ip4:72.52.133.135 include:us._netblocks.mimecast.com ~all
  • _globalsign-domain-verification=L_Xl7Px-rF0qriX4BQU7mOz42eO8okqY5jr1e8nQhY
  • MS=ms29761013
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