halcyonllc.com

Valid Email Server
Domain Lookup › halcyonllc.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 20:45:59 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • us-smtp-inbound-2.mimecast.com: 20
  • us-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 98.129.63.26 ↩ 177377-web1.aisreporting.com

Mail Server IPs

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

SOA Record

Raw SOA ns0.dnsmadeeasy.com dns.dnsmadeeasy.com 2008010869 43200 3600 1209600 180
Primary NS (mname)
ns0.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2008010869
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns2.dnsmadeeasy.com
ns1.dnsmadeeasy.com
ns3.dnsmadeeasy.com
ns0.dnsmadeeasy.com
ns4.dnsmadeeasy.com

SPF Record

✓ Strict (-all)
v=spf1 mx include:us._netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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

8 records
  • ciscocidomainverification=5b3311ad097e52dcebc4d3067360095133bbc08f82bb72a24ad18908a0316b32
  • ZOOM_verify_FQ2K0T8PTKyCr-zVWQlgXQ
  • MS=ms48207032
  • MS=ms22045872
  • citrix.mobile.ads.otp=wai4sdzn8tpcei0ns65crl6
  • 5rKnQ70ddg9TENKalkbKHb6RpC7Ty6/J1hSsv7SlyRdFzCuYMk1zWwE6rOBx07phJx1th+Mo1pCNeJM5E5sFUg==
  • SPFv=spf1 mx include:us._netblocks.mimecast.com include:spf.protection.outlook.com -all
  • MS=AD3BAA3B7DA6E3A73E54BA584B730380D25303E8
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