opera-bonn.de

Valid Email Server
Domain Lookup › opera-bonn.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
opera-bonn.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 04:33:31 UTC · ↺ Refresh

MX Hostnames

  • operabonn-de01c.mail.protection.outlook.com

MX Priorities

  • operabonn-de01c.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.67.150.124 (no PTR)
  • 104.21.96.26 (no PTR)
  • 2606:4700:3037::6815:601a
  • 2606:4700:3033::ac43:967c

Mail Server IPs

  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA mario.ns.cloudflare.com dns.cloudflare.com 2399030540 10000 2400 604800 1800
Primary NS (mname)
mario.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399030540
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

mario.ns.cloudflare.com
megan.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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

3 records
  • MS=ms12033111
  • google-site-verification=jZ9x3VYtHjVgI5P47P6v4jAccfkArvTCP-LjkLYwwPg
  • SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for opera-bonn.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits