Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tietjen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 08:13:35 UTC · ↺ Refresh
MX Hostnames
- mail.dextermedia.de
MX Priorities
- mail.dextermedia.de: 10
A / AAAA Records
- 85.236.47.133 ↩ mail2.dextermedia.de
Mail Server IPs
- 85.236.47.137 ↩ mail.dextermedia.de
- 2001:4178:2:1147:85:236:59:180 ↩ mail.dextermedia.de
SOA Record
Raw SOA
a.ns14.net do-not-reply.tietjen.de 2024123101 43200 7200 1209600 180
Primary NS (mname)
a.ns14.net
Admin Email (rname)
do-not-reply@tietjen.de
Serial
2024123101
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
a.ns14.net
c.ns14.net
b.ns14.net
d.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo 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 mx -all
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