stvtechnology.cz

Valid Email Server
Domain Lookup › stvtechnology.cz
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
stvtechnology.cz
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 18:23:54 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

  • stvtechnology-cz.mail.protection.outlook.com

MX Priorities

  • stvtechnology-cz.mail.protection.outlook.com: 10

A / AAAA Records

  • 83.167.244.201 (no PTR)

Mail Server IPs

  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.91.159 ↩ mail-matpr04cu00207.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.103.140 ↩ mail-miypr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::a ↩ mail-am7pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c967::a ↩ mail-cpjpr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca3c::6 ↩ mail-zrxpr04cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns.forpsi.net admin.forpsi.com 2026083101 14400 3600 2592000 3600
Primary NS (mname)
ns.forpsi.net
Admin Email (rname)
admin@forpsi.com
Serial
2026083101
Refresh
14400s
Retry
3600s
Expire
2592000s
Minimum TTL
3600s

Nameservers (NS)

ns.forpsi.cz
ns.forpsi.it
ns.forpsi.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:62.109.134.18 ip6:2001:1ab0:7e1e:d150:ec4:7aff:fe53:56dc include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; adkim=r; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

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

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

All TXT Records

2 records
  • SPFv=spf1 ip4:62.109.134.18 ip6:2001:1ab0:7e1e:d150:ec4:7aff:fe53:56dc include:spf.protection.outlook.com -all
  • MS=ms91483748
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 stvtechnology.cz

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

No credit card required
Get 1,000 Free Credits