Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
contipack.de
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 15:22:49 UTC · ↺ Refresh
MX Hostnames
- d328137.a.ess.de.barracudanetworks.com
- d328137.b.ess.de.barracudanetworks.com
MX Priorities
- d328137.b.ess.de.barracudanetworks.com: 20
- d328137.a.ess.de.barracudanetworks.com: 10
A / AAAA Records
- 49.12.214.29 ↩ redirect.goeppel.eu
- 2a01:4f8:1c17:c7dc::1 ↩ redirect.goeppel.eu
Mail Server IPs
- 18.185.115.252 ↩ mail.ess.de.barracuda.com
- 18.185.115.251 ↩ mail.ess.de.barracuda.com
- 18.185.115.250 ↩ mail.ess.de.barracuda.com
SOA Record
Raw SOA
a.dns-i.net hostmaster.insyst.de 2023060939 28800 7200 1209600 1800
Primary NS (mname)
a.dns-i.net
Admin Email (rname)
hostmaster@insyst.de
Serial
2023060939
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
1800s
Nameservers (NS)
a.dns-i.net
b.dns-i.net
c.dns-i.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:213.83.7.225 a:mail2.axxum.eu include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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
1 record- SPFv=spf1 ip4:213.83.7.225 a:mail2.axxum.eu include:spf.protection.outlook.com -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 contipack.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits