Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
campusm21.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 17:07:26 UTC · ↺ Refresh
MX Hostnames
- mxlbpu.ispgateway.de
- mxlb.ispgateway.de
MX Priorities
- mxlb.ispgateway.de: 10
- mxlbpu.ispgateway.de: 20
A / AAAA Records
- 212.204.96.217 ↩ raq17.owmedia.de
Mail Server IPs
- 80.67.18.126 ↩ mxlb.ispgateway.de
- 80.67.29.44 ↩ mxlbpu.ispgateway.de
SOA Record
Raw SOA
ns1091.ui-dns.com hostmaster.1und1.com 2017060127 28800 7200 604800 600
Primary NS (mname)
ns1091.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060127
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1069.ui-dns.org
ns1091.ui-dns.com
ns1065.ui-dns.de
ns1025.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:134.119.228.97/32 ip4:80.67.18.126/32 ip4:80.67.29.44/32 ip4:81.169.162.75/32 include:spoc.one include:ispgateway.de ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — 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- MS=ms32771038
- SPFv=spf1 mx a ip4:134.119.228.97/32 ip4:80.67.18.126/32 ip4:80.67.29.44/32 ip4:81.169.162.75/32 include:spoc.one include:ispgateway.de ~all
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 campusm21.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits