Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
24plus.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 13:58:47 UTC · ↺ Refresh
MX Hostnames
- smtp.cubit24.de
MX Priorities
- smtp.cubit24.de: 10
A / AAAA Records
- 91.203.213.151 ↩ server1.sempercon.de
- 2a02:2b80:101:104::1133 ↩ server1.sempercon.de
Mail Server IPs
- 185.209.133.24 ↩ smtp.cubit24.de
SOA Record
Raw SOA
ns1.24plus.de hostmaster.24plus.de 4 86400 10800 3600000 172800
Primary NS (mname)
ns1.24plus.de
Admin Email (rname)
hostmaster@24plus.de
Serial
4
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
172800s
Nameservers (NS)
ns2a.dodns.net
ns1a.dodns.net
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:91.203.213.151/32 a:fortimail.fuldacloud.de a:securemail.fuldacloud.de include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; fo=0
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx a ip4:91.203.213.151/32 a:fortimail.fuldacloud.de a:securemail.fuldacloud.de include:spf.protection.outlook.com -all
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