bestsigngroup.com

Valid Email Server
Domain Lookup › bestsigngroup.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 09:13:49 UTC · ↺ Refresh

MX Hostnames

  • bestsigngroup-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 18.214.190.32 ↩ lb1.hosting.insideout.com

Mail Server IPs

  • 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.insideoutdns.com domains.insideout.com 1 7200 900 1209600 3600
Primary NS (mname)
ns1.insideoutdns.com
Admin Email (rname)
domains@insideout.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns4.insideoutdns.com
ns1.insideoutdns.com
ns2.insideoutdns.com
ns3.insideoutdns.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spfa.cpmails.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

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

2 records
  • SPFv=spf1 include:spf.protection.outlook.com include:spfa.cpmails.com -all
  • MS=669708D1C91EBF1973A749DC55C0B1F9622E7847
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