jumbo-mobile.de

Valid Email Server
Domain Lookup › jumbo-mobile.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
jumbo-mobile.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 11:38:05 UTC · ↺ Refresh

MX Hostnames

  • jumboserver.synology.me

MX Priorities

  • jumboserver.synology.me: 10

A / AAAA Records

  • 104.21.32.218 (no PTR)
  • 172.67.136.122 (no PTR)
  • 2606:4700:3037::ac43:887a (no PTR)
  • 2606:4700:3030::6815:20da (no PTR)

Mail Server IPs

  • 78.35.140.203 ↩ xdsl-78-35-140-203.nc.de
  • 2a0a:a547:c822::211:32ff:fe59:3ebd ↩ 2a0a-a547-c822-0-211-32ff-fe59-3ebd.ipv6dyn.netcologne.de

SOA Record

Raw SOA adaline.ns.cloudflare.com dns.cloudflare.com 2397661816 10000 2400 604800 1800
Primary NS (mname)
adaline.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397661816
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

adaline.ns.cloudflare.com
nico.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.smtp2go.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — 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
  • SPFv=spf1 include:spf.smtp2go.com ~all
  • 2gf425alicbnsn6p6egkmrmv1d
  • google-site-verification=as8IA5Rk9idCdkI6o80i3zB75RLL7i-RbKtUwOzRbUc
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