jacob-cement.de

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
jacob-cement.de
Yes
โœ“ Yes
Barracuda
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-25 00:18:59 UTC ยท โ†บ Refresh

MX Hostnames

  • d328696.b.ess.de.barracudanetworks.com
  • d328696.a.ess.de.barracudanetworks.com

MX Priorities

  • d328696.b.ess.de.barracudanetworks.com: 10
  • d328696.a.ess.de.barracudanetworks.com: 10

A / AAAA Records

  • 116.203.250.44 โ†ฉ static.44.250.203.116.clients.your-server.de

Mail Server IPs

  • 18.185.115.252 โ†ฉ mail.ess.de.barracuda.com
  • 18.185.115.250 โ†ฉ mail.ess.de.barracuda.com
  • 18.185.115.251 โ†ฉ mail.ess.de.barracuda.com

SOA Record

Raw SOA karlsruhe.nic.xlink.net de-domain.xlink.net 2026022000 86400 7200 604800 300
Primary NS (mname)
karlsruhe.nic.xlink.net
Admin Email (rname)
de-domain@xlink.net
Serial
2026022000
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

koeln.nic.xlink.net
frankfurt.nic.xlink.net

SPF Record

โœ“ Strict (-all)
v=spf1 ip4:34.159.129.59/32 ip4:192.109.96.0/24 ip4:195.243.151.99/32 include:spf.protection.outlook.com include:spf.crsend.com include:spf-de.emailsignatures365.com -all
๐Ÿ“Š DNS lookups: 3/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ— Missing

No DMARC record โ€” emails cannot be rejected on auth failure.

DKIM Selectors

โœ— None detected

No DKIM records found for common selectors โ€” 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
  • google-site-verification=T81dZUvC-wfG8yFeyV-n1-wux8I_C0jpxwgXo-Jh6WA
  • X-NIC Certified Quality Zone
  • SPFv=spf1 ip4:34.159.129.59/32 ip4:192.109.96.0/24 ip4:195.243.151.99/32 include:spf.protection.outlook.com include:spf.crsend.com include:spf-de.emailsignatures365.com -all
Free ยท No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts โ€” unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for jacob-cement.de

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

No credit card required
Get 1,000 Free Credits