zen3.co.uk

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
zen3.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-22 03:49:28 UTC · ↺ Refresh

MX Hostnames

  • zen3-co-uk.mail.protection.outlook.com
  • zen3-co-uk.mail.protection.outlook.com

MX Priorities

  • zen3-co-uk.mail.protection.outlook.com: 0
  • zen3-co-uk.mail.protection.outlook.com: 10

A / AAAA Records

  • 18.132.16.155 ↩ ec2-18-132-16-155.eu-west-2.compute.amazonaws.com

Mail Server IPs

  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1292.awsdns-33.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1292.awsdns-33.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1854.awsdns-39.co.uk
ns-1017.awsdns-63.net
ns-1292.awsdns-33.org
ns-130.awsdns-16.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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

6 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • 6cc1la2lg50dv6os75ph1v2972
  • 9tuu19vd1hpu14suhhkajdmf6h
  • atlassian-domain-verification=gJY76VWn6wn0+8dai/J6xsIoL5dngoPyGDKC7+aCK1YdqStLM1pOwjtNU77HZvoh
  • ft2lv7js6fttrqfebu40ost3ot
  • google-site-verification=9X4vMeFBCgdIpO1AdepTh7bNQ2qGGPxLb0tnaKMl0nM
Free · No signup required
Add email validation to your forms

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

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for zen3.co.uk

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

No credit card required
Get 1,000 Free Credits