Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
dominicforderer.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-06 14:37:23 UTC · ↺ Refresh
MX Hostnames
- mail.protonmail.ch
- mailsec.protonmail.ch
MX Priorities
- mail.protonmail.ch: 10
- mailsec.protonmail.ch: 20
A / AAAA Records
- 178.63.30.26 ↩ k71a42.meinserver.io
Mail Server IPs
- 185.70.42.128 ↩ mail.protonmail.ch
- 176.119.200.128 ↩ mail.protonmail.ch
- 185.205.70.128 ↩ mail.protonmail.ch
- 176.119.200.129 ↩ mailsec.protonmail.ch
- 185.70.42.129 ↩ mailsec.protonmail.ch
- 185.205.70.129 ↩ mailsec.protonmail.ch
SOA Record
Raw SOA
hydrogen.ns.hetzner.com dns.hetzner.com 2024010214 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2024010214
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
hydrogen.ns.hetzner.com
helium.ns.hetzner.de
oxygen.ns.hetzner.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.protonmail.ch mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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- SPFv=spf1 include:_spf.protonmail.ch mx ~all
- protonmail-verification=fdbaa0683f225638cf9f1138a975b5f3f5a588a6
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 dominicforderer.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits