theco.de

Valid Email Server
Domain Lookup › theco.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
theco.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 22:15:46 UTC · ↺ Refresh

MX Hostnames

  • mail.theco.de
  • dns.theco.de

MX Priorities

  • mail.theco.de: 5
  • dns.theco.de: 10

A / AAAA Records

  • 91.107.226.149 ↩ lxc.theco.de

Mail Server IPs

  • 87.191.165.204 ↩ buero.theco.de
  • 91.107.229.253 ↩ dns.theco.de

SOA Record

Raw SOA dns.theco.de admin.theco.de 2026033101 28800 7200 604800 600
Primary NS (mname)
dns.theco.de
Admin Email (rname)
admin@theco.de
Serial
2026033101
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

robotns3.second-ns.com
dns.theco.de
ns1.first-ns.de
robotns2.second-ns.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a:gate2.theco.de a:themail.theco.de a:dns.theco.de a:gate.theco.de ip4:91.107.229.253 ip4:91.250.83.147 ip4:62.138.149.32 ip4:80.237.194.112 ip4:87.191.165.204 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

1 record
  • SPFv=spf1 a:gate2.theco.de a:themail.theco.de a:dns.theco.de a:gate.theco.de ip4:91.107.229.253 ip4:91.250.83.147 ip4:62.138.149.32 ip4:80.237.194.112 ip4:87.191.165.204 ~all
Full email verification for theco.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits