usamobility.com

Valid Email Server
Domain Lookup › usamobility.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
usamobility.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 22:55:24 UTC · ↺ Refresh

MX Hostnames

  • spok-com.mail.protection.outlook.com

MX Priorities

  • spok-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 147.187.128.45 ↩ www.usamobility.com

Mail Server IPs

  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.archwireless.com hostmastertx.spok.com 1106336187 10800 3600 604800 600
Primary NS (mname)
ns1.archwireless.com
Admin Email (rname)
hostmastertx@spok.com
Serial
1106336187
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns2.archwireless.com
ns1.archwireless.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:147.187.128.183 ip4:147.187.128.184 include:aspmx.pardot.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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
  • Rli4+wvbpNIlDfDfex0xNEUwNE1u/rbFA24AvQ+Eahb3SXYtt2SqJiF5BOWHXDIwPcWOSj085ZN1kCuuMK0VSA==
  • SPFv=spf1 ip4:147.187.128.183 ip4:147.187.128.184 include:aspmx.pardot.com include:spf.protection.outlook.com ~all
  • _6s2ees80sxnqkewh82pi01ltme1pc7o
  • _qsukhij9f7mm781fp91547pg8rrcstl
  • MS=ms74748821
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