Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
diw.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 14:56:05 UTC · ↺ Refresh
MX Hostnames
- diw-de.mail.protection.outlook.com
MX Priorities
- diw-de.mail.protection.outlook.com: 0
A / AAAA Records
- 195.90.218.113 ↩ formdata.diw.de
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.diw.de server-admins.diw.de 2026032401 21600 7200 1800000 86400
Primary NS (mname)
dns1.diw.de
Admin Email (rname)
server-admins@diw.de
Serial
2026032401
Refresh
21600s
Retry
7200s
Expire
1800000s
Minimum TTL
86400s
Nameservers (NS)
dns2.diw.de
deneb.dfn.de
dns1.diw.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com ip4:193.174.142.20 ip4:193.174.141.161 ip4:193.174.141.162 ip4:193.174.142.147 ip4:193.174.142.148 ip4:193.174.141.120 ip4:193.174.141.121 ip4:193.174.141.122 ip4:193.174.142.69 ip4:193.174.141.140 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=none; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
4 records- linkedin-site-verification=f52e6b05-e986-4f0a-810f-a7177f3f7e4a
- SPFv=spf1 mx include:spf.protection.outlook.com ip4:193.174.142.20 ip4:193.174.141.161 ip4:193.174.141.162 ip4:193.174.142.147 ip4:193.174.142.148 ip4:193.174.141.120 ip4:193.174.141.121 ip4:193.174.141.122 ip4:193.174.142.69 ip4:193.174.141.140 -all
- HARICA-KS6eMQEV7B0snItRzDR
- apple-domain-verification=4V8rGV5u89tZuXjs
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