envisiontec.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
envisiontec.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 08:10:28 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • envisiontec-de.mail.protection.outlook.com: 50

A / AAAA Records

  • 217.160.0.190 ↩ 217-160-0-190.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com

SOA Record

Raw SOA ns1033.ui-dns.org hostmaster.1und1.com 2017060218 28800 7200 604800 600
Primary NS (mname)
ns1033.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060218
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1056.ui-dns.biz
ns1022.ui-dns.com
ns1033.ui-dns.org
ns1017.ui-dns.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.atlassian.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=5; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 5% of failing messages only

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

8 records
  • lucid-verification=j1t6dCEUdGjg
  • atlassian-sending-domain-verification=83736179-575e-4cff-b54f-f19565ab7813
  • knowbe4-site-verification=47ea0771f90b05c34a041e337ce14104
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.atlassian.net -all
  • box-domain-verification=9f3526def61cf789996c9ccdf899ad96512947da89ad74300b9576e662ca8656
  • ZOOM_verify_Zk0m7zPqrI0ZaqBcEpdSMF
  • apple-domain-verification=DRs1YrGAmNV74LTe
  • hubspot-domain-verification=N2IyYWY3MGItNGY0MS00ZjFlLTgwZmMtMjQ2NTE2MTlmOWJh
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
See demo & docs
Deep verification
Full email verification for envisiontec.de

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

No credit card required
Get 1,000 Free Credits