Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
randomhouse.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 10:58:52 UTC · ↺ Refresh
MX Hostnames
- randomhouse-de.mail.protection.outlook.com
MX Priorities
- randomhouse-de.mail.protection.outlook.com: 10
A / AAAA Records
- 128.65.213.77 (no PTR)
Mail Server IPs
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
dns009.arvato-systems.de hostmaster.bnic.bertelsmann.de 2025070700 3600 1800 3600000 3600
Primary NS (mname)
dns009.arvato-systems.de
Admin Email (rname)
hostmaster@bnic.bertelsmann.de
Serial
2025070700
Refresh
3600s
Retry
1800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
dns017.arvato-systems.de
dns009.arvato-systems.de
ns2.arvato-systems.de
ns1.arvato-systems.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.bert.group include:_spf.senders.scnem.com include:spf.servicemail24.de include:spf.protection.outlook.com a:rdm.siruphosting.de a:smtp.siruphosting.de -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; pct=100; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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
10 records- adobe-idp-site-verification=5b3363d3-2b28-4368-8605-ad40c1b4c93b
- google-site-verification=3YQ3wIAA7lHersxWSNRjg2EDNXQGt8TuSfBHUk4qW8M
- box-domain-verification=db77a8bd2b4c58c0c06fe162423a3228c6d9be760b24b66336e394f05f465c31
- vobsKffWJrIyxZWLQpsAHmR58FqCUgvOWvieJ61IAenCy2FeAQZMpGfm8gWmRye64ZGbIONJ1GFdZlyZnJoqPQ==
- SPFv=spf1 mx include:spf.bert.group include:_spf.senders.scnem.com include:spf.servicemail24.de include:spf.protection.outlook.com a:rdm.siruphosting.de a:smtp.siruphosting.de -all
- rWjVxH5A470y4nW/0l3f/TuZXTc/mTxBOOxaKd1c7+xUHE5albK0cQyY/HCQyxU6oqulbkfEl99hozzu4Tf3kg==
- google-site-verification=zVjivVEK3syqhh6jmwpQV5_5SSx15tGHV8w8GCjfe7E
- MS=A2F6417D267CB7AC7D83F0F4C3AFCFBA63A060E5
- MS=ms64682909
- google-site-verification=u6z1SLl3kBlTQwJhYtRka49tY3bh-sgltn22P1fIEcg
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