usi.biz

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
usi.biz
Yes
โœ“ Yes
Unknown
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-03-28 09:14:46 UTC ยท โ†บ Refresh

MX Hostnames

  • cluster-g.mailcontrol.com
  • cluster-h.mailcontrol.com

MX Priorities

  • cluster-g.mailcontrol.com: 10
  • cluster-h.mailcontrol.com: 10

A / AAAA Records

  • 139.60.216.71 (no PTR)

Mail Server IPs

  • 208.87.233.190 โ†ฉ cluster-g.mailcontrol.com
  • 208.87.234.190 โ†ฉ cluster-h.mailcontrol.com

SOA Record

Raw SOA pdns09.domaincontrol.com dns.jomax.net 2025103000 28800 7200 604800 600
Primary NS (mname)
pdns09.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025103000
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

pdns10.domaincontrol.com
pdns09.domaincontrol.com

SPF Record

โœ“ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:_spf1.usi.com include:_spf2.usi.com include:mktomail.com -all
๐Ÿ“Š DNS lookups: 5/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ— Missing

No DMARC record โ€” emails cannot be rejected on auth failure.

DKIM Selectors

โœ“ 2 found
selector1._domainkey
selector2._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

15 records
  • 71kyklbss1xwrbjryy7ntyjdhjpz0n31
  • c2fbd80c517143ed8a3917c7ce632d6a
  • spf2.0/mfrom,pra mx include:spf.protection.outlook.com include:_spf1.usi.com include:_spf2.usi.com include:mktomail.com -all
  • _pmbsfc01wx1cqdtyhth9qpw9t0uds4a
  • s5qqhplygyb60w09jl40hwktz01yq7rp
  • +jnHyMOOC+hMAhVOq0ukXM0dSV7xUnXg9jcdJZPnI6rVauxA5m3hc2SfgWVYEH4oq5IHLshL5U3Dl+HArHm7BA==
  • cisco-ci-domain-verification=4b2b925a2f94cbabbe652ad054813869fa4b722647877e755bb4a912c2554d21
  • f61jp8wlj5r1ccw146tp9gycmfpbft60
  • SPFv=spf1 mx include:spf.protection.outlook.com include:_spf1.usi.com include:_spf2.usi.com include:mktomail.com -all
  • IJw3QOruNu/M3tcsQspgJR7k2iQXk/dWUL5fHBapBX5jAk3Om4WWKSyMeAlSiZOkLaalqJaPZkAkoiaA4IfoGg==
  • 3e87fe7c8e434c26b6e6db840b03f4d7
  • MS=ms56434768
  • MS=D3D757C48727194BA019CA0D3E13172720355186
  • d5c330cda5794edcbfccb2c9ec411ce2
  • _47w67f8mbkg9wziv7r70goq8x761qop
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