gutmann.de

Valid Email Server
Domain Lookup › gutmann.de

Domain Overview

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

Checked via [email protected] · 2026-04-02 17:54:30 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 78.46.10.104 ↩ dedi1904.your-server.de

Mail Server IPs

  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.your-server.de postmaster.your-server.de 2026032000 86400 10800 3600000 3600
Primary NS (mname)
ns1.your-server.de
Admin Email (rname)
postmaster@your-server.de
Serial
2026032000
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

ns1.your-server.de
ns3.second-ns.de
ns.second-ns.com

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:217.243.143.254 ip4:88.217.169.182 include:spf.protection.outlook.com include:spf.crsend.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; ruf=mailto:[email protected]; fo=d
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine

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

6 records
  • pnGn69uclK+qQ5kJnUEk+tj2dDLZLheDoXGILVve0G7vv37M50irJryy1OXk47I4oTl4wOqEmqC5NjjUsY0+oQ==
  • SPFv=spf1 mx ip4:217.243.143.254 ip4:88.217.169.182 include:spf.protection.outlook.com include:spf.crsend.com -all
  • MS=ms43111767
  • apple-domain-verification=nnhwm2jQEj8X0wCB
  • knowbe4-site-verification=fceb6359cb00284f91c02be4bb5a43c2
  • l9kpz9qdmbzjz1tx24y9clf3vcpgmf1f
Full email verification for gutmann.de

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

SPF / DKIM / DMARC Get 1,000 Free Credits