besttaxcpas.com

Valid Email Server
Domain Lookup › besttaxcpas.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 20:30:24 UTC · ↺ Refresh

MX Hostnames

  • besttaxcpas-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 69.20.104.42 (no PTR)

Mail Server IPs

  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.world-serv.net dns.world-serv.net 2022091201 10800 900 777600 3600
Primary NS (mname)
ns1.world-serv.net
Admin Email (rname)
dns@world-serv.net
Serial
2022091201
Refresh
10800s
Retry
900s
Expire
777600s
Minimum TTL
3600s

Nameservers (NS)

ns2.world-serv.net
ns1.world-serv.net
ns1.world-serv.com
ns2.world-serv.com

SPF Record

✓ Strict (-all)
v=spf1 a mx include:world-serv.net include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ 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

2 records
  • SPFv=spf1 a mx include:world-serv.net include:spf.protection.outlook.com -all
  • MS=ms26439314
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