aicerts.io

Valid Email Server

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
aicerts.io
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-27 16:08:12 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • aicerts-io.mail.protection.outlook.com

MX Priorities

  • aicerts-io.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.26.15.226 (no PTR)
  • 172.67.72.49 (no PTR)
  • 104.26.14.226
  • 2606:4700:20::ac43:4831
  • 2606:4700:20::681a:fe2
  • 2606:4700:20::681a:ee2

Mail Server IPs

  • 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
  • 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
  • 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA mckenzie.ns.cloudflare.com dns.cloudflare.com 2409172646 10000 2400 604800 1800
Primary NS (mname)
mckenzie.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2409172646
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

mckenzie.ns.cloudflare.com
tadeo.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 IP4:159.183.139.239 include:spf.protection.outlook.com include:spf.sendinblue.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

6 records
  • google-site-verification=SukGBif0lbeL8CJi_n3Sy_QuMO1rPai-1oEbbvHPya0
  • google-site-verification=s1dFiyMP4AWBGuUXQ8dxQRPjVLoogjN236dPbopvE4A
  • SPFv=spf1 IP4:159.183.139.239 include:spf.protection.outlook.com include:spf.sendinblue.com -all
  • MS=ms13387367
  • google-site-verification=38JNIt9uF2rU-3r6Ry1mU95KixBgeQEwWKpAAHVhJ3g
  • google-site-verification=OK_p0jsUEOc7u3dbt6NEcDhCuKt0btJSXaCXJV0SZG4
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 · Customize →
See demo & docs
Deep verification
Full email verification for aicerts.io

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

No credit card required
Get 1,000 Free Credits