Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
edacentrum.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 06:41:44 UTC · ↺ Refresh
MX Hostnames
- edacentrum-de.mail.protection.outlook.com
MX Priorities
- edacentrum-de.mail.protection.outlook.com: 10
A / AAAA Records
- 136.243.61.233 ↩ mail.edacentrum.de
- 2a01:4f8:212:1ce8::2 ↩ mail.edacentrum.de
Mail Server IPs
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
nsa0.schlundtech.de edv.edacentrum.de 2025112626 43200 7200 1209600 3600
Primary NS (mname)
nsa0.schlundtech.de
Admin Email (rname)
edv@edacentrum.de
Serial
2025112626
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
nsb0.schlundtech.de
nsa0.schlundtech.de
nsd0.schlundtech.de
nsc0.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:mail.edacentrum.de include:mail.lrz.de include:uni-kl.de include:uni-erlangen.de include:uni-freiburg.de include:uni-siegen.de include:uni-hannover.de include:spf2.edacentrum.de -all
📊 DNS lookups: 10/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; sp=reject; aspf=r;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
5 records- SPFv=spf1 mx include:spf.protection.outlook.com include:mail.edacentrum.de include:mail.lrz.de include:uni-kl.de include:uni-erlangen.de include:uni-freiburg.de include:uni-siegen.de include:uni-hannover.de include:spf2.edacentrum.de -all
- google-site-verification=Eyc8A7DvXkcsPwAPkebrt1aNw6ZUnooe9N4O0xuJF3E
- google-site-verification=KcZBxTObC-6U3sKF1QqVJ9e8uR5iaUvSh-VOSttXee0
- MS=ms81005118
- 9C1-acW-3dV
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