Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
projecta-koeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 01:41:08 UTC · ↺ Refresh
MX Hostnames
- kerio.adminsystems.de
MX Priorities
- kerio.adminsystems.de: 10
A / AAAA Records
- 217.160.0.232 ↩ 217-160-0-232.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com
Mail Server IPs
- 46.4.107.163 ↩ kerio.adminsystems.de
- 2a01:4f8:141:425:1::2 ↩ kerio.adminsystems.de
SOA Record
Raw SOA
ns1045.ui-dns.com hostmaster.1und1.com 2017060123 28800 7200 604800 600
Primary NS (mname)
ns1045.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060123
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1045.ui-dns.com
ns1045.ui-dns.org
ns1045.ui-dns.de
ns1045.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx -all
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