Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
swi-gruppe.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 11:54:06 UTC · ↺ Refresh
MX Hostnames
- mx1.agenturserver.de
- mx3.agenturserver.de
- mx4.agenturserver.de
- mx2.agenturserver.de
MX Priorities
- mx2.agenturserver.de: 20
- mx1.agenturserver.de: 10
- mx3.agenturserver.de: 30
- mx4.agenturserver.de: 40
A / AAAA Records
- 185.215.158.114 (no PTR)
Mail Server IPs
- 185.15.192.57 ↩ mx2.agenturserver.de
- 185.15.192.56 ↩ mx1.agenturserver.de
- 185.15.192.58 ↩ mx3.agenturserver.de
- 185.15.192.59 ↩ mx4.agenturserver.de
SOA Record
Raw SOA
nsa1.schlundtech.de hostmaster.conceptnet.de 2026011403 28800 7200 604800 3600
Primary NS (mname)
nsa1.schlundtech.de
Admin Email (rname)
hostmaster@conceptnet.de
Serial
2026011403
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
nsb1.schlundtech.de
nsd1.schlundtech.de
nsc1.schlundtech.de
nsa1.schlundtech.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx mx:eukia-immobilien.de ip4:212.77.185.0/24 ip4:213.174.55.58 ip4:213.174.32.0/24 ip4:95.130.162.196 ip6:2001:16e0:104:3::/64 include:spf.nl2go.com include:spf.crsend.com include:agenturserver.de ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 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
3 records- SPFv=spf1 a mx mx:eukia-immobilien.de ip4:212.77.185.0/24 ip4:213.174.55.58 ip4:213.174.32.0/24 ip4:95.130.162.196 ip6:2001:16e0:104:3::/64 include:spf.nl2go.com include:spf.crsend.com include:agenturserver.de ~all
- 201903260936504dzlj98o0o6p5or6gyirt2fldysypoquo7ixqj1bgk1ruc2xpl
- domainVerification=06f3e0d2-6008-46a6-9b7e-8abdb46289bc
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 · Customize →
See demo & docs
Deep verification
Full email verification for swi-gruppe.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits