Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hollmann-duesseldorf.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 21:32:11 UTC · ↺ Refresh
MX Hostnames
- hollmannduesseldorf-de02b.mail.protection.outlook.com
- mx-02-eu-central-1.prod.hydra.sophos.com
- mx-01-eu-central-1.prod.hydra.sophos.com
MX Priorities
- mx-02-eu-central-1.prod.hydra.sophos.com: 10
- hollmannduesseldorf-de02b.mail.protection.outlook.com: 200
- mx-01-eu-central-1.prod.hydra.sophos.com: 10
A / AAAA Records
- 37.218.254.110
Mail Server IPs
- 52.57.79.230 ↩ ec2-52-57-79-230.eu-central-1.compute.amazonaws.com
- 18.159.237.67 ↩ ec2-18-159-237-67.eu-central-1.compute.amazonaws.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.webspace-verkauf.de hostmaster.hollmann-duesseldorf.de 2024020101 86400 7200 3600000 172800
Primary NS (mname)
ns1.webspace-verkauf.de
Admin Email (rname)
hostmaster@hollmann-duesseldorf.de
Serial
2024020101
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
172800s
Nameservers (NS)
ns3.webspace-verkauf.de
ns1.webspace-verkauf.de
ns2.webspace-verkauf.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf-006bdb01.pphosted.com include:_spf.prod.hydra.sophos.com ~all
📊 DNS lookups: 3/10
~ 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
5 records- sophos-domain-verification=ace5119fd230d18668a9a68900c4c737d94c5682
- MS=ms41178194
- SPFv=spf1 include:spf.protection.outlook.com include:spf-006bdb01.pphosted.com include:_spf.prod.hydra.sophos.com ~all
- MS=ms59342637
- MS=ms14576820
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