tssiusa.com

Valid Email Server
Domain Lookup › tssiusa.com

Domain Overview

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

Checked via [email protected] · 2026-04-04 07:52:27 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

  • 64.188.2.244 ↩ server200.serverange.net

Mail Server IPs

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

SOA Record

Raw SOA ns55.worldnic.com namehost.worldnic.com 125102808 10800 3600 604800 3600
Primary NS (mname)
ns55.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125102808
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns56.worldnic.com
ns55.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ 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

5 records
  • _globalsign-domain-verification=9WLQ6SDLjhoM06ERo1ECKuOxwv-m8kFW2d-J_eQbQr
  • MS=3BF931AAA5917143BDD760B2A9A6D6E06EC4CC97
  • _globalsign-domain-verification=x_WeICAY5ulA_8BpTDvoKf8RgIQVHVnfbGh-jI95Sp
  • _globalsign-domain-verification=GvFl7GsG_C4LI6F-NEljhdecG7u4vdfspXP--VUX_A
  • SPFv=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com -all
Full email verification for tssiusa.com

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits