Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cecon.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 18:30:58 UTC · ↺ Refresh
MX Hostnames
- cecon-de.mail.protection.outlook.com
MX Priorities
- cecon-de.mail.protection.outlook.com: 10
A / AAAA Records
- 87.106.24.82 ↩ ip87-106-24-82.pbiaas.com
Mail Server IPs
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
wonderland.cecon.de admin.wonderland.cecon.de.cecon.de 2026030501 28800 7200 604800 86400
Primary NS (mname)
wonderland.cecon.de
Admin Email (rname)
admin@wonderland.cecon.de.cecon.de
Serial
2026030501
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns01.cecon.de
ns03.cecon.de
ns02.cecon.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:45.91.212.1 ip4:45.91.213.1 ip4:45.91.214.1 a:certrelay.cecon.de a:smtp.cecon.de a:mailgw.electronicsales.de include:agenturserver.de include:spf.gntel.de include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
📊 DNS lookups: 8/10
✓ 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
5 records- google-site-verification=4RGRGdzrUIBL2TRaqfD5eVAnTrU43xyvoF7reY7--Us
- SPFv=spf1 mx ip4:45.91.212.1 ip4:45.91.213.1 ip4:45.91.214.1 a:certrelay.cecon.de a:smtp.cecon.de a:mailgw.electronicsales.de include:agenturserver.de include:spf.gntel.de include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
- swisssign-check=U9aJA_y9qW3PesGYRFu5R5YcOFA
- apple-domain-verification=n4qYXUduTVrABvrt
- MS=DB1C73383D9FDC870C1FEE9335E41A5170AF35B1
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 cecon.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits