Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
osyscon.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 09:22:19 UTC · ↺ Refresh
MX Hostnames
- osyscon-de.mail.protection.outlook.com
MX Priorities
- osyscon-de.mail.protection.outlook.com: 0
A / AAAA Records
- 75.2.60.5 ↩ acd89244c803f7181.awsglobalaccelerator.com
Mail Server IPs
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026031602 14400 1800 604800 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026031602
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
robotns2.second-ns.de
robotns3.second-ns.com
ns1.first-ns.de
SPF Record
✓ Strict (-all)
v=spf1 a mx a:mail.preeco.de include:spf.protection.outlook.com include:spf.crsend.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100
⚠ p=none — monitoring only, no enforcement
📋 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- google-site-verification=uL_Ec65bR2APuac-KwnRJBCSHd9-yGCpoTTfjLvjkDA
- MS=ms18226465
- Z73-1H9-24T
- SPFv=spf1 a mx a:mail.preeco.de include:spf.protection.outlook.com include:spf.crsend.com -all
- google-site-verification=cpj6hxRZnfg5fXJFQTzgPsryo9z6FaF0vCn_HLQZ8gQ
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