Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
biotop-oberland.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 07:54:00 UTC · ↺ Refresh
MX Hostnames
- mx04.secure-mailgate.com
- mx03.secure-mailgate.com
MX Priorities
- mx04.secure-mailgate.com: 20
- mx03.secure-mailgate.com: 10
A / AAAA Records
- 91.203.110.229 ↩ host229.checkdomain.de
Mail Server IPs
- 46.243.88.175 ↩ node03.secure-mailgate.com
- 46.243.88.177 ↩ node04.secure-mailgate.com
- 46.243.88.176 ↩ node04.secure-mailgate.com
- 46.243.88.174 ↩ node03.secure-mailgate.com
SOA Record
Raw SOA
ns.checkdomain.de hostmaster.checkdomain.de 2026021901 40000 7200 604800 300
Primary NS (mname)
ns.checkdomain.de
Admin Email (rname)
hostmaster@checkdomain.de
Serial
2026021901
Refresh
40000s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns2.checkdomain.de
ns.checkdomain.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:185.26.156.35 include:secure-mailgate.com include:sendgrid.net include:spf.sendingservice.net include:spf.sendinblue.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a mx ip4:185.26.156.35 include:secure-mailgate.com include:sendgrid.net include:spf.sendingservice.net include:spf.sendinblue.com ~all
- sendinblue-code:24ea9de5206684a1ca5f788a9b31bea7
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