3s-pos.com

Valid Email Server
Domain Lookup › 3s-pos.com

Domain Overview

DNS: ✓ 6d ago Checker: ✓ 6d ago
3s-pos.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-15 00:40:06 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

  • 3spos-com0e.mail.protection.outlook.com

MX Priorities

  • 3spos-com0e.mail.protection.outlook.com: 0

A / AAAA Records

  • 198.202.211.1 (no PTR)
  • 2620:cb:2000::1 (no PTR)

Mail Server IPs

  • 52.101.89.1 ↩ mail-lo0p265cu00201.inbound.protection.outlook.com
  • 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
  • 52.101.99.0 ↩ mail-cwxp265cu00600.inbound.protection.outlook.com
  • 52.101.99.2 ↩ mail-cwxp265cu00502.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b::2 ↩ mail-lo0p265cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b:: ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
  • 2a01:111:f403:ca1a::1 ↩ mail-cwxp265cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca1a:: ↩ mail-cwxp265cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA abby.ns.cloudflare.com dns.cloudflare.com 2404346555 10000 2400 604800 1800
Primary NS (mname)
abby.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404346555
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

abby.ns.cloudflare.com
garret.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:eu.zcsend.net include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; adkim=r; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 1 found
zoho._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: zoho

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

All TXT Records

10 records
  • MS=F46AC4967F2E2D1984D53F544D8AB95F1B4E73F7
  • google-site-verification=2TqsHKxNDT-Qt6-Va69FV77HHvX8YOth-5lKgB6Dmwo
  • google-site-verification=jMylcfUtdZsvt6ySfyUiSMa5Ow3_eqrdi0TgJzQtz3c
  • google-site-verification=qMpGKMGknjXGGyaI8uQJJ33wcPqLpEW80A_UsvaDvbI
  • SPFv=spf1 include:eu.zcsend.net include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com ~all
  • SPFv=spf1 include:spf.mailjet.com ?all
  • 20170322183936a57msnpo360jf54w5985qfn4930xau86kj4xerqvmp09y13pnf
  • 201802071230373nubuwprri4h7j1bpxkbvczyoggzr34264vk81vo12rjb2pxel
  • 201811091325510t2ugcfmag5ds3qbclmjfehc8h9jux8dc5e59r0kp1gs0r66t4
  • DirectFedAuthUrl=https://login.microsoftonline.com/938ebaab-ac3e-4ad3-9058-4ad682590465/saml2
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 3s-pos.com

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

No credit card required
Get 1,000 Free Credits