Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
m3-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 08:51:32 UTC · ↺ Refresh
MX Hostnames
- m3gmbh-de0e.mail.protection.outlook.com
MX Priorities
- m3gmbh-de0e.mail.protection.outlook.com: 10
A / AAAA Records
- 185.201.108.41 ↩ b9c96c29.ip.dreso.com
Mail Server IPs
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.dreso.com it-team-netze.dreso.com 2025081901 10800 3600 604800 3600
Primary NS (mname)
ns.dreso.com
Admin Email (rname)
it-team-netze@dreso.com
Serial
2025081901
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.bisping.de
ns3.bisping.de
ns2.bisping.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.m3-gmbh.de include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; fo=1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
4 records- docusign=ffcc6419-2c17-42b2-ab20-bd24c45fd0cf
- MS=ms60967364
- MS=9A7A3F3CBA590DA1E09BDB88C804013B85B01B17
- SPFv=spf1 include:spf.m3-gmbh.de include:spf.protection.outlook.com -all
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