Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
tree-it.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-09 08:50:07 UTC · ↺ Refresh
MX Hostnames
- treeit-de01b.mail.protection.outlook.com
MX Priorities
- treeit-de01b.mail.protection.outlook.com: 0
A / AAAA Records
- 116.203.113.42 ↩ mail.tree-it.de
- 2a01:4f8:c0c:ec14::1 ↩ mail.tree-it.de
Mail Server IPs
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.your-server.de postmaster.your-server.de 2026031603 86400 10800 3600000 7200
Primary NS (mname)
ns1.your-server.de
Admin Email (rname)
postmaster@your-server.de
Serial
2026031603
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
7200s
Nameservers (NS)
ns3.second-ns.de
ns.second-ns.com
ns1.your-server.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;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: 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
7 records- jetbrains-domain-verification=awpbromk2nfuae4sly7iq61fs
- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms92741255
- apple-domain-verification=bdQkrBnIjrGdsQ8i
- atlassian-domain-verification=4GuKPgl/bVZJ9yJO95/et5IPlxBxBZYM8Ly1rRDIca5wzhOBBgYM8oyfTWP3klrs
- atlassian-sending-domain-verification=0d8263be-5abc-4f00-92c2-b4373946501f
- google-site-verification=Aj4cjeLgggOOlO5MtoL6ZdRyOjOpZ-BSmHUe6_y0-f8
Full email verification for tree-it.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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