Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sofa-luebeck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 04:03:17 UTC · ↺ Refresh
MX Hostnames
- mx03.secure-mailgate.com
- mx04.secure-mailgate.com
MX Priorities
- mx03.secure-mailgate.com: 10
- mx04.secure-mailgate.com: 20
A / AAAA Records
- 91.203.110.238 ↩ host238.checkdomain.de
Mail Server IPs
- 46.243.88.174 ↩ node03.secure-mailgate.com
- 46.243.88.176 ↩ node04.secure-mailgate.com
- 46.243.88.177 ↩ node04.secure-mailgate.com
- 46.243.88.175 ↩ node03.secure-mailgate.com
SOA Record
Raw SOA
ns.checkdomain.de hostmaster.checkdomain.de 2021013101 40000 7200 604800 300
Primary NS (mname)
ns.checkdomain.de
Admin Email (rname)
hostmaster@checkdomain.de
Serial
2021013101
Refresh
40000s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns.checkdomain.de
ns2.checkdomain.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:secure-mailgate.com ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:secure-mailgate.com ?all
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