kronmat.de

Valid Email Server

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
kronmat.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-11-10 12:25:21 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

  • kronmat-de.mail.protection.outlook.com

MX Priorities

  • kronmat-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 213.216.83.221 ↩ 213-216-83-221.static.ip.netia.com.pl

Mail Server IPs

  • 52.101.73.123 ↩ mail-am6pr02cu00203.inbound.protection.outlook.com
  • 52.101.103.39 ↩ mail-miypr05cu00207.inbound.protection.outlook.com
  • 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
  • 52.101.73.126 ↩ mail-am8pr83cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::a ↩ mail-wa4pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c967::8 ↩ mail-cpjpr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::24 ↩ mail-am6pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::10 ↩ mail-matpr05cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.fakro.pl hostmaster.fakro.pl 2026102901 28800 7200 604800 86400
Primary NS (mname)
ns1.fakro.pl
Admin Email (rname)
hostmaster@fakro.pl
Serial
2026102901
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns1.fakro.pl
ns2.fakro.pl

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:37.128.111.170/32 ip4:37.247.226.76/32 ip4:37.247.226.87/32 ip4:37.128.111.172/32 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

DKIM Selectors

✓ 2 found
default._domainkey
dkim._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

4 records
  • SPFv=spf1 a mx ip4:37.128.111.170/32 ip4:37.247.226.76/32 ip4:37.247.226.87/32 ip4:37.128.111.172/32 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all
  • google-site-verification=6LY7Uh7zEd6oZgOVt-rIhA4-peOGM_CuHQKOrc3-pBU
  • openai-domain-verification=dv-CRGsryZdwekCEgVa2nCuQbif
  • MS=ms88385978
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 kronmat.de

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

No credit card required
Get 1,000 Free Credits