colliertax.com

Valid Email Server
Domain Lookup › colliertax.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 03:24:35 UTC · ↺ Refresh

MX Hostnames

  • mail.colliertax.com
  • colliertax-com.mail.protection.outlook.com

MX Priorities

  • mail.colliertax.com: 20
  • colliertax-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 209.17.116.163 (no PTR)

Mail Server IPs

  • 209.17.116.163 (no PTR)
  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
  • 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
  • 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com

SOA Record

Raw SOA ns91.worldnic.com namehost.worldnic.com 125021116 10800 3600 604800 3600
Primary NS (mname)
ns91.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125021116
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns91.worldnic.com
ns92.worldnic.com

SPF Record

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

2 records
  • MS=ms78735628
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.grantstreet.com -all
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