siebert-huenfeld.de

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
siebert-huenfeld.de
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-04-04 17:14:25 UTC ยท โ†บ Refresh

MX Hostnames

  • sieberthuenfeld-de01i.mail.protection.outlook.com

MX Priorities

  • sieberthuenfeld-de01i.mail.protection.outlook.com: 10

A / AAAA Records

  • 185.243.133.184 โ†ฉ shared-clump0072-web.agenturserver.it

Mail Server IPs

  • 52.101.68.21 โ†ฉ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.16 โ†ฉ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 52.101.68.0 โ†ฉ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.68.29 โ†ฉ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: โ†ฉ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d โ†ฉ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c โ†ฉ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::4 โ†ฉ mail-db4pr02cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA ns01.agenturserver.de support.mittwald.de 1775132428 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
1775132428
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns01.agenturserver.co
ns01.agenturserver.it
ns01.agenturserver.de

SPF Record

โœ“ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
๐Ÿ“Š DNS lookups: 1/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100;
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 2 found
selector1._domainkey
selector2._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: selector1

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

All TXT Records

3 records
  • MS=ms19559195
  • google-site-verification=5vdCuTKqV3e0dkXtNEh4fFmpTEfrfLk1iiP4qW4qajQ
  • SPFv=spf1 include:spf.protection.outlook.com -all
Free ยท No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts โ€” unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for siebert-huenfeld.de

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

No credit card required
Get 1,000 Free Credits