Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rheinwohnungsbau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 21:13:14 UTC · ↺ Refresh
MX Hostnames
- mailgate.rheinwohnungsbau.de
MX Priorities
- mailgate.rheinwohnungsbau.de: 0
A / AAAA Records
- 89.107.188.89 ↩ 28767.whserv.de
Mail Server IPs
- 20.23.231.50 (no PTR)
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.proxy.nospamproxy.com include:spf.protection.outlook.com include:spf.cloud.ci-solution.com include:spf.topdesk.net include:_spf.aareon.com ip4:88.79.212.222 ip4:88.79.212.196 ip4:78.94.56.166 ip4:217.9.41.82 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0:1:s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._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
6 records- SPFv=spf1 include:_spf.proxy.nospamproxy.com include:spf.protection.outlook.com include:spf.cloud.ci-solution.com include:spf.topdesk.net include:_spf.aareon.com ip4:88.79.212.222 ip4:88.79.212.196 ip4:78.94.56.166 ip4:217.9.41.82 -all
- have-i-been-pwned-verification=dweb_c77men6c1gj71zjjnprfjbbp
- google-site-verification=0NlYXDv_wUMHiBS0cl1R-DzqlHT5hfKfaQAwnN_bhrY
- brevo-code:28253eb4bfb57e82c28644eb64a4027b
- swisssign-check=KDhVJsjwwxG6JII4wQleNPpaDlg
- mscid=AgEV1uiepTWTq0qhbnTl/nkbd1GJ/jfPAalQu/aH35OQYp+X1pU1O1/fmpY6GeqfHJE9sSMVoKnUnXrc9h8JWA==
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