Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ukaachen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 17:24:11 UTC · ↺ Refresh
MX Hostnames
- ukaachen-de.mail.protection.outlook.com
MX Priorities
- ukaachen-de.mail.protection.outlook.com: 4422
A / AAAA Records
- 134.130.15.160 ↩ www.vm.ukaachen.de
Mail Server IPs
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
zs1.rz.rwth-aachen.de hostmaster.rwth-aachen.de 2026031901 10800 3600 3600000 600
Primary NS (mname)
zs1.rz.rwth-aachen.de
Admin Email (rname)
hostmaster@rwth-aachen.de
Serial
2026031901
Refresh
10800s
Retry
3600s
Expire
3600000s
Minimum TTL
600s
Nameservers (NS)
dns-2.dfn.de
zs1.rz.rwth-aachen.de
zs2.rz.rwth-aachen.de
dns-1.dfn.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:134.130.5.32/27 ip4:134.130.5.176/28 ip6:2a00:8a60:1:e501::/64 ip6:2a00:8a60:1:e502::/64 include:spf.protection.outlook.com include:spf.crsend.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; sp=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
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- MS=ms17802702
- apple-domain-verification=41HGEbzK4ciMlX5o
- EBnDhTlufM2uvS3he34EdKYf0oHfQgZqFFqYtQTBShGnrjbJnOwXn+RxHyp30ws9IGCSajRl9atYkghpaWSH8w==
- SPFv=spf1 ip4:134.130.5.32/27 ip4:134.130.5.176/28 ip6:2a00:8a60:1:e501::/64 ip6:2a00:8a60:1:e502::/64 include:spf.protection.outlook.com include:spf.crsend.com -all
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