sigoldmanco.com

Valid Email Server
Domain Lookup › sigoldmanco.com

Domain Overview

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

Checked via [email protected] · 2026-03-30 03:33:12 UTC · ↺ Refresh

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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

  • 45.40.144.49 ↩ 49.144.40.45.host.secureserver.net

Mail Server IPs

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

SOA Record

Raw SOA ns1-06.azure-dns.com dnsadmin.comfortsystemsusa.com 205201415 86400 7200 1209600 7200
Primary NS (mname)
ns1-06.azure-dns.com
Admin Email (rname)
dnsadmin@comfortsystemsusa.com
Serial
205201415
Refresh
86400s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s

Nameservers (NS)

ns2-06.azure-dns.net
ns3-06.azure-dns.org
ns4-06.azure-dns.info
ns1-06.azure-dns.com

SPF Record

✓ Strict (-all)
v=spf1 mx:comfortsystemsusa-com.mail.protection.outlook.com ip4:72.32.72.85 ip4:162.242.134.119 ip4:72.32.72.83 ip4:72.32.72.84 include:spf_all.comfortsystemsusa.com include:_spf.wpcloud.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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
  • jj4u2e4191j6j0tght5q33bfaj
  • SPFv=spf1 mx:comfortsystemsusa-com.mail.protection.outlook.com ip4:72.32.72.85 ip4:162.242.134.119 ip4:72.32.72.83 ip4:72.32.72.84 include:spf_all.comfortsystemsusa.com include:_spf.wpcloud.com -all
  • lIUkdc0eeJK5Y+6n3Qh1i06UFKTEiUiIOvVRKEcZYSX5Jrcbb5QUc3N7Mw/ZF81RDX03NS2PBwlCJ/pUtf2YRQ==
  • include:spf.bidtracer.com
  • MS=ms53780661
  • _globalsign-domain-verification=svqfsuj7UOTfGlTOV6DEZlOJrqjJ9ZdmEg9-QFKswV
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