Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
achental-realschule.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 20:25:49 UTC · ↺ Refresh
MX Hostnames
- achentalrealschule-de02b.mail.protection.outlook.com
MX Priorities
- achentalrealschule-de02b.mail.protection.outlook.com: 10
A / AAAA Records
- 37.200.100.27 ↩ mc21323.ispgateway.de
Mail Server IPs
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.domaindiscount24.net tech.key-systems.net 2024120302 10800 3600 604800 28800
Primary NS (mname)
ns3.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2024120302
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns2.domaindiscount24.net
ns3.domaindiscount24.net
ns1.domaindiscount24.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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- apple-domain-verification=TNkmAvFroejTUx2X
- 427v4lmvsu0p0qej9s0etgpp81
- t05ug0r59bodmdoaq6tpu6iv3u
- SPFv=spf1 include:spf.protection.outlook.com ~all
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