Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
luedecke.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 01:35:57 UTC · ↺ Refresh
MX Hostnames
- mail.luedecke.de
MX Priorities
- mail.luedecke.de: 10
A / AAAA Records
- 185.243.133.129 ↩ r29491.agenturserver.it
Mail Server IPs
- 87.130.14.76 ↩ mail.luedecke.de
SOA Record
Raw SOA
kiki.bunny.net hostmaster.bunny.net 2020032201 7200 900 1209600 86400
Primary NS (mname)
kiki.bunny.net
Admin Email (rname)
hostmaster@bunny.net
Serial
2020032201
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
kiki.bunny.net
coco.bunny.net
SPF Record
✓ Strict (-all)
v=spf1 mx include:agenturserver.de include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; sp=none; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
9 records- dell-technologies-domain-verification=luedecke.de_91616ddf-4e49-4d32-8d77-dda56509efbb_1753268987
- MS=ms96391099
- 620-mna888
- SPFv=spf1 mx include:agenturserver.de include:spf.protection.outlook.com -all
- google-site-verification=DciIMToBUTII0waQHlosCKFYBXMcg62j_Lj76hQI4Sw
- fortinet-fortiphish-site-verification=XXHUjp4K5oThYy6aUCAS7Z
- 897cf7c14e776be6f4cfad9c7970f6
- b22736f7066637d1f5db70564e41dcdcace057d83bbe9176b3d82756279cf5f9
- google-site-verification=0A6TXh8RrECBOOZhHYq9e9qD91vYTWUIJN1SvyevKwg
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 luedecke.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits