Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
esn-tt.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-06 14:31:53 UTC · ↺ Refresh
MX Hostnames
- esntt-de0i.mail.protection.outlook.com
MX Priorities
- esntt-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 213.190.31.112 ↩ carbon.icue-medien.de
Mail Server IPs
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.ip-projects.de postmaster.esn-tt.de 2025022400 14400 3600 1209600 28800
Primary NS (mname)
ns3.ip-projects.de
Admin Email (rname)
postmaster@esn-tt.de
Serial
2025022400
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
28800s
Nameservers (NS)
ns3.ip-projects.de
ns4.ip-projects.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:mailgateway.esn-tt.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ip4:87.139.179.70 ip4:87.190.20.50 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=r; aspf=s; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
3 records- MS=46107BCF970DEB3287236A44D5D02C65C0615F15
- SPFv=spf1 mx a:mailgateway.esn-tt.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ip4:87.139.179.70 ip4:87.190.20.50 ~all
- apple-domain-verification=2xp6Dv8yQb9VkENC
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