jost-immo.de

Valid Email Server
Domain Lookup › jost-immo.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
jost-immo.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 08:49:38 UTC · ↺ Refresh

MX Hostnames

  • jostimmo-de01b.mail.protection.outlook.com

MX Priorities

  • jostimmo-de01b.mail.protection.outlook.com: 10

A / AAAA Records

  • 148.251.191.62 ↩ www.comfine.de

Mail Server IPs

  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com

SOA Record

Raw SOA ns0.comfine.de hostmaster.jost-immo.de 2022072801 43200 2400 604800 1800
Primary NS (mname)
ns0.comfine.de
Admin Email (rname)
hostmaster@jost-immo.de
Serial
2022072801
Refresh
43200s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

nsc0.schlundtech.de
ns0.comfine.de
nsd0.schlundtech.de
nsb0.schlundtech.de

SPF Record

✓ Strict (-all)
v=spf1 +mx include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 +mx include:spf.protection.outlook.com -all
  • google-site-verification=elt6y2Q6m0OYLR3o7CfZ5pykw0GxujJa9BWxVTDsbQM
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 jost-immo.de

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits