signature.com.es

Valid Email Server

Domain Overview

DNS: ✓ just now Checker: ✓ just now
signature.com.es
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-23 10:41:12 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

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

MX Priorities

  • signature-com-es.mail.protection.outlook.com: 0

A / AAAA Records

  • 9.163.40.246 (no PTR)

Mail Server IPs

  • 52.101.73.155 ↩ mail-am7pr02cu00203.inbound.protection.outlook.com
  • 52.101.209.28 ↩ mail-cpjpr05cu00104.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.73.123 ↩ mail-am6pr02cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::8 ↩ mail-wa4pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::28 ↩ mail-am6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::a ↩ mail-wa4pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca3c::a ↩ mail-zrxpr07cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.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

14 records
  • MS=ms51369923
  • mscid=jIwM4TNW3Jx7PeKG+viab976NN0MCXFCyVpi0B8mDkY2Fmirw7dnJpXq7qRIv8vzF0fdZ+4p9OeGeFEfajCoYQ==
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • 202110260609412g1v8nlckqd9e1bnh7bwvul8kccoajqql67u6whi1afuysykq6
  • 202210281023422t2nshh3rccto3kg97e1ja2l1vvivrfbllu37weg7wldgflzug
  • 202310180646551u42zo5s01ux12txvjrnnzlgfgmt0zq9l9gockj4463e0zmqq2
  • 2023111709210861p2smgzdwjxoegk2vnzlqjma44jyrerbixgixw1vc1s3gijvq
  • 202411100236093jjew5v5ngt7hyd8xbdn5bz2nyghzcy5cjfkxue2ehlw8iy6pr
  • google-site-verification=LheMUXbpJ4UqGAlJm7_Nu7DTs2baD8_1DthkuisGZu0
  • _5uorjdsh5mxt7ngdlqt623b4g3jjp5h
  • ms-domain-verification=1bf37156-4e47-4828-80b9-d4167bc10a66
  • ms-domain-verification=7e5e2167-918f-476d-a831-1a46cd2e4804
  • ms-domain-verification=0d1e47b1-59da-472e-a05c-69eb2f859284
  • google-site-verification=ighRtQELlddMge_iiZ3R_sGpq2rHaOv0QKkI7EhGtNk
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 signature.com.es

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

No credit card required
Get 1,000 Free Credits