Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cotec-it-systeme.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 02:05:42 UTC · ↺ Refresh
MX Hostnames
- mail.cotec1.de
MX Priorities
- mail.cotec1.de: 10
A / AAAA Records
- 37.27.40.200 ↩ static.200.40.27.37.clients.your-server.de
Mail Server IPs
- 80.243.45.198 ↩ mail.cotec1.de
SOA Record
Raw SOA
a.ns14.net providing.cotec-gruppe.de 2026010702 43200 7200 1209600 86400
Primary NS (mname)
a.ns14.net
Admin Email (rname)
providing@cotec-gruppe.de
Serial
2026010702
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
a.ns14.net
b.ns14.net
c.ns14.net
d.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:80.243.45.197 ip4:80.243.45.198 ip4:80.243.45.199 ip4:80.243.45.212 ip4:217.92.139.107 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- google-site-verification=j2Al00yattEVDLXKl5bXLN73EwFw-CTqSzEW80QSlsM
- jetbrains-domain-verification=dq0q3lo0j0hk602t8rctpm34p
- SPFv=spf1 mx ip4:80.243.45.197 ip4:80.243.45.198 ip4:80.243.45.199 ip4:80.243.45.212 ip4:217.92.139.107 -all
Full email verification for cotec-it-systeme.de
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