bestco.com

Valid Email Server
Domain Lookup › bestco.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
bestco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-25 19:14:03 UTC · ↺ Refresh

MX Hostnames

  • bestco-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 2620:12a:8001::4 (no PTR)
  • 2620:12a:8000::4 (no PTR)

Mail Server IPs

  • 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
  • 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns57.domaincontrol.com dns.jomax.net 2025061100 28800 7200 604800 600
Primary NS (mname)
ns57.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025061100
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns58.domaincontrol.com
ns57.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:66.57.182.154 include:email.freshservice.com include:spf.protection.outlook.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

✗ 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

14 records
  • fog6hb2il7bisbp1g19t6iemsn
  • ib1840lrk44bsgt7nvsmkuj6in
  • knowbe4-site-verification=dbaf5c96470c4cf7253448145bbc4030
  • apple-domain-verification=XQqn4vPRoTWpZstr
  • cisco-ci-domain-verification=676ee913923fa3d016c44fc674a9847fb241837c1e12ecb2adbdcb7589a0f71c
  • h9ebkv7k12bsc45dh03uohb7o4
  • 3tyqwirBTymwDZHseaBWqhm49Vn2xxpWNaWJ5LkA7NXZNOLp0zFKdX1OL+zTUDdvPrFPgqgpcrGvFs4OxVTrVQ==
  • SPFv=spf1 ip4:66.57.182.154 include:email.freshservice.com include:spf.protection.outlook.com -all
  • ciscocidomainverification=676ee913923fa3d016c44fc674a9847fb241837c1e12ecb2adbdcb7589a0f71c
  • MS=ms57368466
  • 5ld21bl65v3281ha8uq7ivl2i6
  • MS=ms76553023
  • MS=ms94459575
  • MS=ms76736248
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