oblanca.es

Valid Email Server

Domain Overview

DNS: ✓ just now Checker: ✓ just now
oblanca.es
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-23 10:50:11 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

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

MX Priorities

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

A / AAAA Records

  • 217.76.132.245 ↩ llgi106.servidoresdns.net

Mail Server IPs

  • 52.101.185.21 ↩ mail-zrxpr05cu00105.inbound.protection.outlook.com
  • 52.101.73.155 ↩ mail-am7pr02cu00203.inbound.protection.outlook.com
  • 52.101.91.153 ↩ mail-matpr04cu00101.inbound.protection.outlook.com
  • 52.101.209.28 ↩ mail-cpjpr05cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:c967::c ↩ mail-cpjpr05cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA dns7.servidoresdns.net hostmaster.servidoresdns.net 2002033058 21600 3600 2419200 86400
Primary NS (mname)
dns7.servidoresdns.net
Admin Email (rname)
hostmaster@servidoresdns.net
Serial
2002033058
Refresh
21600s
Retry
3600s
Expire
2419200s
Minimum TTL
86400s

Nameservers (NS)

dns8.servidoresdns.net
dns7.servidoresdns.net

SPF Record

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

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=50; rua=mailto:[email protected]; fo=1; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
⚠ Policy applies to 50% of failing messages only

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

4 records
  • google-site-verification=vHc8IX7ATfrEcb13lGjCbPoA3Un3Q-POzrenTRn62Xw
  • MS=ms95521534
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • facebook-domain-verification=tu4pswj2i7wuxaqcgu4g790wrhmxbk
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 oblanca.es

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

No credit card required
Get 1,000 Free Credits