authentications-microsoft.com

Valid Email Server
Domain Lookup › authentications-microsoft.com

Domain Overview

DNS: ✓ 20h ago Checker: ✓ 20h ago
authentications-microsoft.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-18 10:57:16 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

  • mx1.hostinger.com
  • mx2.hostinger.com
  • mail.authentications-microsoft.com

MX Priorities

  • mx2.hostinger.com: 10
  • mail.authentications-microsoft.com: 10
  • mx1.hostinger.com: 5

A / AAAA Records

  • 45.13.239.171 ↩ 171.239.13.45.in-addr.arpa

Mail Server IPs

  • 172.65.182.103 (no PTR)
  • 2606:4700:90:0:c1f8:f874:2386:b61f (no PTR)
  • 45.13.239.171 ↩ 171.239.13.45.in-addr.arpa

SOA Record

Raw SOA ns1.dyna-ns.net hostmaster.authentications-microsoft.com 2026032501 16384 2048 1209600 300
Primary NS (mname)
ns1.dyna-ns.net
Admin Email (rname)
hostmaster@authentications-microsoft.com
Serial
2026032501
Refresh
16384s
Retry
2048s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

ns1.dyna-ns.net
ns2.dyna-ns.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.mail.hostinger.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

2 records
  • SPFv=spf1 include:_spf.mail.hostinger.com ~all
  • 88c6ab1ad577bd6b134a4481fa203587
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 authentications-microsoft.com

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

No credit card required
Get 1,000 Free Credits