jbskcpas.com

Valid Email Server
Domain Lookup › jbskcpas.com

Domain Overview

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

Checked via [email protected] · 2026-03-29 15:53:18 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 44.226.107.251 ↩ ec2-44-226-107-251.us-west-2.compute.amazonaws.com

Mail Server IPs

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

SOA Record

Raw SOA ns79.worldnic.com namehost.worldnic.com 125090510 10800 3600 604800 3600
Primary NS (mname)
ns79.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125090510
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns80.worldnic.com
ns79.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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

9 records
  • sophos-domain-verification=30fd0d3585407c15be2f9aeaf629c6f8769df247
  • SPFv=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com -all
  • 0ed1fe018a82843c0d46be4917ae6908b1bee247da
  • 1pg00cvesionf0ealol23qlb3h
  • MS=ms52506592
  • odhoriufn7jgbae4vstmbs17gl
  • google-site-verification=82VUYZOcTGOmayQlchLfjRwHJtZHPvcZVHonqLcE0Ag
  • haque395srbgn8p1lb49o2a6t6
  • jj9vrr9g6ihka7dcgu6fj9kasm
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