tzi.de

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
tzi.de
Yes
โœ“ Yes
Unknown
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-04-03 12:21:41 UTC ยท โ†บ Refresh

MX Hostnames

  • web-gast-mx.zfn.uni-bremen.de

MX Priorities

  • web-gast-mx.zfn.uni-bremen.de: 10

A / AAAA Records

  • 134.102.200.100 โ†ฉ inti.informatik.uni-bremen.de

Mail Server IPs

  • 134.102.22.228 โ†ฉ web-gast-mx.zfn.uni-bremen.de

SOA Record

Raw SOA ns.informatik.uni-bremen.de hostmaster.informatik.uni-bremen.de 2025062500 10800 3600 864000 86400
Primary NS (mname)
ns.informatik.uni-bremen.de
Admin Email (rname)
hostmaster@informatik.uni-bremen.de
Serial
2025062500
Refresh
10800s
Retry
3600s
Expire
864000s
Minimum TTL
86400s

Nameservers (NS)

ns.informatik.uni-bremen.de
deneb.dfn.de
dns-1.dfn.de

SPF Record

โœ“ Soft Fail (~all)
v=spf1 mx include:fb3.uni-bremen.de ~all
๐Ÿ“Š DNS lookups: 2/10
~ Soft fail (~all) โ€” moderate enforcement

DMARC Record

โœ— p=none
v=DMARC1; p=none;
โš  p=none โ€” monitoring only, no enforcement
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
โš  No aggregate reports (rua= not set)

DKIM Selectors

โœ— None detected

No DKIM records found for common selectors โ€” your provider may use a custom selector name.

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

All TXT Records

2 records
  • SPFv=spf1 mx include:fb3.uni-bremen.de ~all
  • Technologiezentrum Informatik
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 tzi.de

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

No credit card required
Get 1,000 Free Credits