Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dkv-rc.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 08:00:07 UTC · ↺ Refresh
MX Hostnames
- mx-02-eu-central-1.prod.hydra.sophos.com
- mx-01-eu-central-1.prod.hydra.sophos.com
MX Priorities
- mx-02-eu-central-1.prod.hydra.sophos.com: 10
- mx-01-eu-central-1.prod.hydra.sophos.com: 10
A / AAAA Records
- 79.142.46.46 ↩ hosting.result.de
Mail Server IPs
- 52.57.79.230 ↩ ec2-52-57-79-230.eu-central-1.compute.amazonaws.com
- 18.159.237.67 ↩ ec2-18-159-237-67.eu-central-1.compute.amazonaws.com
SOA Record
Raw SOA
ns1.itergo.net hostmaster.itergo.net 2015031258 18000 27000 864000 172800
Primary NS (mname)
ns1.itergo.net
Admin Email (rname)
hostmaster@itergo.net
Serial
2015031258
Refresh
18000s
Retry
27000s
Expire
864000s
Minimum TTL
172800s
Nameservers (NS)
secondary006.dtag.net
ns1.itergo.net
pns.dtag.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.rz-24.de include:_spf_eucentral1.prod.hydra.sophos.com -all
📊 DNS lookups: 3/10
✓ 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
3 records- MS=ms38799739
- SPFv=spf1 mx include:spf.rz-24.de include:_spf_eucentral1.prod.hydra.sophos.com -all
- sophos-domain-verification=f860c4ea945c12369f1cf32dc01b7773679774fe
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 dkv-rc.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits