Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
deininger-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 14:12:13 UTC · ↺ Refresh
MX Hostnames
- deiningergmbh-de02c.mail.protection.outlook.com
MX Priorities
- deiningergmbh-de02c.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.173 ↩ 217-160-0-173.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2a6 ↩ 2001-08d8-100f-f000-0000-0000-0000-02a6.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1054.ui-dns.biz hostmaster.1and1.com 2017112521 28800 7200 604800 300
Primary NS (mname)
ns1054.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.com
Serial
2017112521
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1059.ui-dns.com
ns1097.ui-dns.de
ns1054.ui-dns.biz
ns1125.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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 include:spf.protection.outlook.com -all
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