Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
schackow.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 17:04:03 UTC · ↺ Refresh
MX Hostnames
- mgw01.icquadrat.com
- mgw02.icquadrat.com
MX Priorities
- mgw01.icquadrat.com: 10
- mgw02.icquadrat.com: 20
A / AAAA Records
- 88.198.119.195 ↩ web1.schackow.de
Mail Server IPs
- 212.90.129.35 ↩ mgw01.icquadrat.com
- 212.90.129.36 ↩ mgw02.icquadrat.com
SOA Record
Raw SOA
ns1.mk.de hostmaster.mk.de 2021081229 10800 3600 604800 300
Primary NS (mname)
ns1.mk.de
Admin Email (rname)
hostmaster@mk.de
Serial
2021081229
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1.mk.de
ns2.mk.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:5.9.229.68 ip4:94.130.95.5 ip4:212.90.129.36 ip4:212.90.129.35 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 include:spf.protection.outlook.com ip4:5.9.229.68 ip4:94.130.95.5 ip4:212.90.129.36 ip4:212.90.129.35 -all
- _h7l36s4cs2xerglp3rk80ebvbrlq1do
- swisssign-check=otnF1MojaOgcrpKJmpRgZJata4k
- MS=EDDCC8298D377D72BF2B379D5EB6AE58BE65464E
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 schackow.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits