Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
upstalsboom.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 21:12:11 UTC · ↺ Refresh
MX Hostnames
- mx14d.antispameurope.com
- mx14a.antispameurope.com
- mx14b.antispameurope.com
- mx14c.antispameurope.com
MX Priorities
- mx14d.antispameurope.com: 40
- mx14c.antispameurope.com: 30
- mx14a.antispameurope.com: 10
- mx14b.antispameurope.com: 20
A / AAAA Records
- 212.53.132.11 (no PTR)
Mail Server IPs
- 94.100.132.100 ↩ hsmx01.antispameurope.com
- 94.100.134.100 ↩ nlb01-hz3.hornetsecurity.com
- 83.246.65.85 ↩ hsmx01-hz2.antispameurope.com
- 83.246.65.100 ↩ nlb01-hz2.hornetsecurity.com.65.246.83.in-addr.arpa
SOA Record
Raw SOA
nsa7.schlundtech.de j\.siebels.upstalsboom.de 2025102408 43200 7200 1209600 86400
Primary NS (mname)
nsa7.schlundtech.de
Admin Email (rname)
j\@siebels.upstalsboom.de
Serial
2025102408
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsb7.schlundtech.de
nsa7.schlundtech.de
nsd7.schlundtech.de
nsc7.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 a ip4:212.27.79.46/32 include:spf.hornetsecurity.com include:spf.protection.outlook.com include:sendgrid.net include:_spf.zimpel.de include:emailsys.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
4 records- MS=ms54239757
- MS=ms82322173
- SPFv=spf1 a ip4:212.27.79.46/32 include:spf.hornetsecurity.com include:spf.protection.outlook.com include:sendgrid.net include:_spf.zimpel.de include:emailsys.net -all
- google-site-verification=K2VL6wT5LREWdr0QzgYFjyxLp_4q6D8kNTf6_aWFXZc
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