Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
darmstadt-online.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 09:17:23 UTC · ↺ Refresh
MX Hostnames
- imap-nwp.darmstadt-online.de
- smtp-nwp.darmstadt-online.de
MX Priorities
- imap-nwp.darmstadt-online.de: 20
- smtp-nwp.darmstadt-online.de: 10
A / AAAA Records
- 62.144.83.23 (no PTR)
Mail Server IPs
- 195.52.247.28 ↩ mail8.netzwerkplan.de
SOA Record
Raw SOA
a.ns14.net do-not-reply.darmstadt-online.de 2025091903 43200 7200 1209600 3600
Primary NS (mname)
a.ns14.net
Admin Email (rname)
do-not-reply@darmstadt-online.de
Serial
2025091903
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
b.ns14.net
c.ns14.net
d.ns14.net
a.ns14.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:195.52.246.0/23 ip4:2.56.78.0/27 mx a ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=30; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 30% of failing messages only
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 ip4:195.52.246.0/23 ip4:2.56.78.0/27 mx a ~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 darmstadt-online.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits