Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
viacobra.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 14:40:52 UTC · ↺ Refresh
MX Hostnames
- mx01.viacobra.de
MX Priorities
- mx01.viacobra.de: 10
A / AAAA Records
- 193.28.153.230 ↩ mail.viacobra.de
- 2a02:ff80:1003::1:0:0:a230 ↩ mail.viacobra.de
Mail Server IPs
- 193.28.153.230 ↩ mail.viacobra.de
- 2a02:ff80:1003::1:0:0:a230 ↩ mail.viacobra.de
SOA Record
Raw SOA
ns1.fis-ltd.de hostmaster.fis-ffm.de 1775227201 16384 2048 1048576 2560
Primary NS (mname)
ns1.fis-ltd.de
Admin Email (rname)
hostmaster@fis-ffm.de
Serial
1775227201
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
ns1.fis-ffm.de
ns2.fis-ffm.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:193.28.153.0/24 ip4:195.158.236.0/24 ip4:185.16.108.0/22 ip6:2a02:ff80:1003:0:1::a225 ip6:2a02:ff80:1003:0:1::a230 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; aspf=s; adkim=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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 mx ip4:193.28.153.0/24 ip4:195.158.236.0/24 ip4:185.16.108.0/22 ip6:2a02:ff80:1003:0:1::a225 ip6:2a02:ff80:1003:0:1::a230 -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 viacobra.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits