Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fresenius.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 02:28:49 UTC · ↺ Refresh
MX Hostnames
- fresenius-de.mail.protection.outlook.com
MX Priorities
- fresenius-de.mail.protection.outlook.com: 10
A / AAAA Records
- 23.185.0.2 (no PTR)
- 2620:12a:8001::2 (no PTR)
- 2620:12a:8000::2
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.lemarit.de hostmaster.lemarit.com 1773414935 43200 10800 2419200 3600
Primary NS (mname)
ns1.lemarit.de
Admin Email (rname)
hostmaster@lemarit.com
Serial
1773414935
Refresh
43200s
Retry
10800s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns2.lemarit.net
ns1.lemarit.de
ns2.lemarit.de
ns1.lemarit.net
ns3.lemarit.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.fresenius.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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- atlassian-domain-verification=sWVmdfofvgOVYFJx8Ye4fnKPNJI2icvwhTFjD1SqgmZjmKmIOlbTSjpAvo7sQBZ3
- SPFv=spf1 include:spf.fresenius.com -all
- google-site-verification=gwqC_h3zX3vn9WmGnV8aI9QoB17fRDMOXbPmbh-sX3A
- MS=ms52791635
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