Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
servatius-koeln.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 06:36:19 UTC · ↺ Refresh
MX Hostnames
- servatiuskoeln-de02c.mail.protection.outlook.com
MX Priorities
- servatiuskoeln-de02c.mail.protection.outlook.com: 0
A / AAAA Records
- 88.198.22.168 ↩ balancer1.hosts.page-tech.de
Mail Server IPs
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1084.ui-dns.biz hostmaster.1und1.de 2016042936 28800 7200 604800 300
Primary NS (mname)
ns1084.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2016042936
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1084.ui-dns.de
ns1084.ui-dns.org
ns1084.ui-dns.com
ns1084.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 include:spf.synxis.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
1 record- SPFv=spf1 include:spf.synxis.com -all
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