derenet.de

Valid Email Server
Domain Lookup › derenet.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
derenet.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-22 08:18:06 UTC · ↺ Refresh

MX Hostnames

  • derenet-de.mail.protection.outlook.com

MX Priorities

  • derenet-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 81.88.34.21 ↩ host350.alfahosting-server.de

Mail Server IPs

  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA cns1.alfahosting.info hostmaster.alfahosting.de 2026030302 28800 7200 604800 86400
Primary NS (mname)
cns1.alfahosting.info
Admin Email (rname)
hostmaster@alfahosting.de
Serial
2026030302
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

cns1.alfahosting.info
cns2.alfahosting.info
cns3.alfahosting.info

SPF Record

✓ Strict (-all)
v=spf1 a mx include:secure-mailgate.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • MS=ms45269605
  • SPFv=spf1 a mx include:secure-mailgate.com include:spf.protection.outlook.com -all
  • MS=38AE4A651D0A06DFE45C311FB86348BE86853345
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