columbiaeyeclinic.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago

Domain

Valid Email Server

Yes

Has MX Records

✓ Yes

Email Provider

Outlook

Disposable

Free Provider

Role Account

⚠ Yes

Email Relay

Privacy Protected

Checked via [email protected] · 2026-03-30 13:51:20 UTC · ↺ Refresh

MX Hostnames

columbiaeyeclinic-com.mail.protection.outlook.com
mx1-us1.ppe-hosted.com
mx2-us1.ppe-hosted.com

MX Priorities

mx2-us1.ppe-hosted.com: 5
columbiaeyeclinic-com.mail.protection.outlook.com: 50
mx1-us1.ppe-hosted.com: 0

A / AAAA Records

135.148.206.209

Mail Server IPs

148.163.129.51 ↩ mx2-us1.ppe-hosted.com
67.231.154.163 ↩ mx2-us1.ppe-hosted.com
52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.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
67.231.154.162
148.163.129.50

SOA Record

                  Raw SOA
                  ns01.domaincontrol.com dns.jomax.net 2025123000 28800 7200 604800 600                

Primary NS (mname)

ns01.domaincontrol.com

Admin Email (rname)

dns@jomax.net

Serial

2025123000

Refresh

28800s

Retry

7200s

Expire

604800s

Minimum TTL

600s

Nameservers (NS)

                      ns02.domaincontrol.com                    

                      ns01.domaincontrol.com                    

SPF Record

✓ Strict (-all)

                    v=spf1 include:spf.protection.outlook.com include:_spf-us.ppe-hosted.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

9 records

x0uSZPnzoMWyeEImYLs9qolcAUwL7OiVNZg0lvz7vL/wk5mE0153fFSiNDUg2w+QsDR0FSTcCNTon7iLVa2eaQ==
v=verifydomain MS=4579886
ppe-46f730c8ee4d797bbe114a8f7abc9bcb1811c528
knowbe4-site-verification=a8d674d97259e29fd0bb51fdb3ecc648
SPFv=spf1 include:spf.protection.outlook.com include:_spf-us.ppe-hosted.com -all
google-site-verification=D7f6ulcMEdguS3QTzJgXyNLHOGw-FLO0yrajwwMVmfM
google-site-verification=Gow8gvJuyMed2WBJMla0YluUML7gs0b4Ac6sM_ZHAGU
google-site-verification=gNBS3m5avOdDQJZiRwHMrWdjIgqjLgwmhKJo117j_us
google-site-verification=mR6GrrpXwDWqOhB3sENM7h2SRqiVinZWMS-S9BRkkRk

Free · No signup required

Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

One line of code · Works on any site

See demo & docs

Deep verification

Full email verification for columbiaeyeclinic.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required

Get 1,000 Free Credits