Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
scheffer.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 04:56:17 UTC · ↺ Refresh
MX Hostnames
- scheffer-de.mail.protection.outlook.com
MX Priorities
- scheffer-de.mail.protection.outlook.com: 10
A / AAAA Records
- 81.169.145.150 ↩ w96.rzone.de
- 2a01:238:20a:202:1150:: ↩ w96.rzone.de
Mail Server IPs
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
SOA Record
Raw SOA
shades04.rzone.de hostmaster.strato-rz.de 2020051098 86400 7200 604800 300
Primary NS (mname)
shades04.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051098
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks03.rzone.de
shades04.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:194.25.81.200/29 ip4:93.240.196.192/29 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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
3 records- MS=ms37735984
- SPFv=spf1 mx ip4:194.25.81.200/29 ip4:93.240.196.192/29 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
- co55BhgK5WxDozTPJed8nh7YqksBV6KbXR7TFhKaVdg7B77VxEw1UBJecYMR0tZJHAkyKlxKCypnHCcR19roaA==
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