Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
periscopestudio.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 20:10:54 UTC · ↺ Refresh
MX Hostnames
- periscopestudio-de.mail.protection.outlook.com
MX Priorities
- periscopestudio-de.mail.protection.outlook.com: 10
A / AAAA Records
- 81.169.145.89 ↩ w89.rzone.de
- 2a01:238:20a:202:1089:: ↩ w89.rzone.de
Mail Server IPs
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
docks07.rzone.de hostmaster.strato-rz.de 2020050708 86400 7200 604800 300
Primary NS (mname)
docks07.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050708
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks07.rzone.de
shades18.rzone.de
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- MS=ms40808909
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