prooffice.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
prooffice.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 10:12:36 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • prooffice-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 78.46.6.82 ↩ prooffice.de

Mail Server IPs

  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns03.rzowl.de fellmer.prooffice.de 2026022401 900 900 604800 10800
Primary NS (mname)
ns03.rzowl.de
Admin Email (rname)
fellmer@prooffice.de
Serial
2026022401
Refresh
900s
Retry
900s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

ns02.rzowl.de
ns03.rzowl.de
ns01.rzowl.de

SPF Record

✓ Strict (-all)
v=spf1 a:dedi1066.your-server.de ip4:90.187.114.225 ip4:87.140.10.218 ip6:2a01:4f8:d0a:3172::2 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

5 records
  • 73f369ac5a3d1914490916681361a003914dffa845d46ecf8550c558b582be1
  • sophos-domain-verification=d5081602f057e666f0807d5602d6b4379014190c1e98f52d5ef7b5f23ca980c4
  • google-site-verification=AYPQ9tSCxv71uV8FBkmphHTqOM7MFPNxro05UYqXWG
  • MS=ms75281214
  • SPFv=spf1 a:dedi1066.your-server.de ip4:90.187.114.225 ip4:87.140.10.218 ip6:2a01:4f8:d0a:3172::2 include:spf.protection.outlook.com -all
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