isolana.es

Valid Email Server

Domain Overview

DNS: ✓ 5h ago Checker: ✓ 5h ago
isolana.es
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 07:51:19 UTC · ↺ Refresh

MX Hostnames

  • isolana-es.mail.protection.outlook.com

MX Priorities

  • isolana-es.mail.protection.outlook.com: 1

A / AAAA Records

  • 104.26.11.136 (no PTR)
  • 104.26.10.136 (no PTR)
  • 172.67.68.150
  • 2606:4700:20::681a:a88
  • 2606:4700:20::681a:b88
  • 2606:4700:20::ac43:4496

Mail Server IPs

  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA joaquin.ns.cloudflare.com dns.cloudflare.com 2404651959 10000 2400 604800 1800
Primary NS (mname)
joaquin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404651959
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

nelci.ns.cloudflare.com
joaquin.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:64.190.114.34 ip4:195.53.83.130 ip4:185.125.27.17 a mx include:spf.protection.outlook.com include:isolana.ip-zone.com include:spf.sendinblue.com include:spf.infomaniak.ch -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
mail._domainkey
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • knowbe4-site-verification=fd84db026d16134f09933e18286ce91a
  • SPFv=spf1 ip4:64.190.114.34 ip4:195.53.83.130 ip4:185.125.27.17 a mx include:spf.protection.outlook.com include:isolana.ip-zone.com include:spf.sendinblue.com include:spf.infomaniak.ch -all
  • MS=ms91994158
  • Sendinblue-code:c565031c229adf75621e7565c6e6d5ed
  • google-site-verification=FbAzUR9Bzi4F-A3fYgYQTiCeLVAsdbe4pdkNBuIxmfo
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 isolana.es

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

No credit card required
Get 1,000 Free Credits