kessler.com

Valid Email Server
Domain Lookup › kessler.com

Domain Overview

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

Checked via [email protected] · 2026-03-22 18:15:47 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

  • 104.21.72.125 (no PTR)
  • 172.67.184.161 (no PTR)
  • 2606:4700:3035::ac43:b8a1 (no PTR)
  • 2606:4700:3033::6815:487d (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA rita.ns.cloudflare.com dns.cloudflare.com 2396912073 10000 2400 604800 1800
Primary NS (mname)
rita.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396912073
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

rita.ns.cloudflare.com
skip.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:spf.smtp2go.com include:spf.ess.barracudanetworks.com include:_spf.psm.knowbe4.com ip4:40.143.114.20 ~all
📊 DNS lookups: 5/10
~ 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

4 records
  • fmcrb1rqp48hhes27jbjsq78h9
  • SPFv=spf1 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:spf.smtp2go.com include:spf.ess.barracudanetworks.com include:_spf.psm.knowbe4.com ip4:40.143.114.20 ~all
  • 9pkM9FZAPlEIpDY3UFgl7RCGBD2MSjpWAiyKtPfF96uiJpUhuhijee5RWAymIyr2oVvm1jldUA0SNnYk42tBog==
  • MS=ms99938212
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