Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sv-zierold.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 23:06:25 UTC · ↺ Refresh
MX Hostnames
- mail.sv-zierold.de
MX Priorities
- mail.sv-zierold.de: 10
A / AAAA Records
- 185.225.133.125 ↩ srvm3125.reverse-ip.de
Mail Server IPs
- 185.225.133.125 ↩ srvm3125.reverse-ip.de
SOA Record
Raw SOA
ns1.host-networx.com hostmaster.host-networx.com 2024120301 7200 3600 604800 14400
Primary NS (mname)
ns1.host-networx.com
Admin Email (rname)
hostmaster@host-networx.com
Serial
2024120301
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
14400s
Nameservers (NS)
ns1.host-networx.com
ns2.host-networx.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:185.225.133.143 +ip4:185.225.133.125 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx +ip4:185.225.133.143 +ip4:185.225.133.125 ~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 sv-zierold.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits