teach.de

Valid Email Server
Domain Lookup › teach.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
teach.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-26 16:51:39 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 85.214.108.168 ↩ h2851710.stratoserver.net

Mail Server IPs

  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.inexio.net hostmaster.inexio.net 2024022702 28800 3600 1728000 3600
Primary NS (mname)
ns1.inexio.net
Admin Email (rname)
hostmaster@inexio.net
Serial
2024022702
Refresh
28800s
Retry
3600s
Expire
1728000s
Minimum TTL
3600s

Nameservers (NS)

ns1.inexio.net
ns2.inexio.net
ns3.inexio.net

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

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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