csusasc.com

Valid Email Server
Domain Lookup › csusasc.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 13:39:21 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

  • 198.185.159.145 (no PTR)
  • 198.49.23.144 (no PTR)
  • 198.49.23.145 (no PTR)
  • 198.185.159.144 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns1-02.azure-dns.com dnsadmin.comfortsystemsusa.com 205201434 86400 7200 1209600 7200
Primary NS (mname)
ns1-02.azure-dns.com
Admin Email (rname)
dnsadmin@comfortsystemsusa.com
Serial
205201434
Refresh
86400s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s

Nameservers (NS)

ns2-02.azure-dns.net
ns3-02.azure-dns.org
ns4-02.azure-dns.info
ns1-02.azure-dns.com

SPF Record

✓ Strict (-all)
v=spf1 mx:comfortsystemsusa-com.mail.protection.outlook.com ip4:204.235.235.48 ip4:205.235.235.86 ip4:209.86.89.69 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 -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

✗ 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

5 records
  • MS=ms69753234
  • aamNqWTaraPtZvIf+v/z/5GLq1zEtOoSm3iwOg8BKWGMAJFozRjizUj2FUqCqltfAoCu/NISQ4CfXjDzFi28Mg==
  • openai-domain-verification=dv-8ncLJgSn8FkvRdUQMOcGLHJK
  • smartsheet-site-validation=q0C6hSPbYmvGoYkJLySKwEsJ98DHIP00
  • SPFv=spf1 mx:comfortsystemsusa-com.mail.protection.outlook.com ip4:204.235.235.48 ip4:205.235.235.86 ip4:209.86.89.69 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 -all
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