Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coldewey.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 17:09:53 UTC · ↺ Refresh
MX Hostnames
- coldewey-de.mail.protection.outlook.com
MX Priorities
- coldewey-de.mail.protection.outlook.com: 10
A / AAAA Records
- 81.169.145.64 ↩ w00.rzone.de
- 2a01:238:20a:202:1064:: ↩ w00.rzone.de
Mail Server IPs
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
docks06.rzone.de hostmaster.strato-rz.de 2020061455 86400 7200 604800 300
Primary NS (mname)
docks06.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020061455
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades07.rzone.de
docks06.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:mx01.coldewey.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.strato.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=s; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
3 records- apple-domain-verification=5kBzaiSP2PyevU5R
- SPFv=spf1 mx a:mx01.coldewey.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.strato.com ~all
- google-site-verification=bE9tbmUaGqDociQHSrMYoAi4q3UD8C8lGEvYR2giJbA
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