Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dhu.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 23:13:37 UTC · ↺ Refresh
MX Hostnames
- dhu-de.mail.protection.outlook.com
MX Priorities
- dhu-de.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.15.27 (no PTR)
- 104.18.14.27 (no PTR)
- 2606:4700::6812:f1b
- 2606:4700::6812:e1b
Mail Server IPs
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ezra.ns.cloudflare.com dns.cloudflare.com 2398503510 10000 2400 604800 1800
Primary NS (mname)
ezra.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398503510
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ezra.ns.cloudflare.com
ligia.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.schwabe-group.com include:145543566.spf06.hubspotemail.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
5 records- 5ceLf7IbCu/6nGi8qH3Kh9vEIsyMUC7YtpLX5ouV5xJBqogPjGY9V91n4crW2rCkyBTq0WQDQYVKGxWoXd9bbg==
- apple-domain-verification=cMOA0Qnc9JgIlwOh
- google-site-verification=bdO6DretKCN9gsuhvIof5MaqUNdWo5Yeb-2ZIEJLIp4
- google-site-verification=shRsGJD8wgtWH7h1rCxKqAJxag2YPuzBog_cUHXl3JI
- SPFv=spf1 include:_spf.schwabe-group.com include:145543566.spf06.hubspotemail.net ~all
Full email verification for dhu.de
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