whitneysmithco.com

Valid Email Server
Domain Lookup › whitneysmithco.com

Domain Overview

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

Checked via [email protected] · 2026-03-17 23:08:46 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 3.131.150.69 ↩ ec2-3-131-150-69.us-east-2.compute.amazonaws.com

Mail Server IPs

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

SOA Record

Raw SOA ns1.dnsimple.com admin.dnsimple.com 1750273737 86400 7200 604800 300
Primary NS (mname)
ns1.dnsimple.com
Admin Email (rname)
admin@dnsimple.com
Serial
1750273737
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns2.dnsimple-edge.net
ns3.dnsimple.com
ns4.dnsimple-edge.org
ns1.dnsimple.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:40.95.0.0/16 a include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.zixsmbhosted.com include:docebosaas.com include:mail.zendesk.com include:u5195044.wl045.sendgrid.net include:_spf.psm.knowbe4.com a:mycoionline.com -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 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

1 record
  • SPFv=spf1 ip4:40.95.0.0/16 a include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.zixsmbhosted.com include:docebosaas.com include:mail.zendesk.com include:u5195044.wl045.sendgrid.net include:_spf.psm.knowbe4.com a:mycoionline.com -all
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