Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
michael-liebert.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 16:34:20 UTC · ↺ Refresh
MX Hostnames
- michaelliebert-de01i.mail.protection.outlook.com
MX Priorities
- michaelliebert-de01i.mail.protection.outlook.com: 0
A / AAAA Records
- 18.192.235.214 ↩ ec2-18-192-235-214.eu-central-1.compute.amazonaws.com
- 2a05:d014:10:2b00:fafd:6259:9f84:89a9 (no PTR)
Mail Server IPs
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-826.awsdns-39.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-826.awsdns-39.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1414.awsdns-48.org
ns-152.awsdns-19.com
ns-1839.awsdns-37.co.uk
ns-826.awsdns-39.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=reject;pct=100;rua=mailto:[email protected];ri=86400;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
3 records- google-site-verification=8_dvF1pMwd6QregDS9NnBlq6r0tXHOpi98Odx3uNUts
- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms61868636
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