Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
insa4.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 06:42:45 UTC · ↺ Refresh
MX Hostnames
- insa4-de.mail.protection.outlook.com
MX Priorities
- insa4-de.mail.protection.outlook.com: 20
A / AAAA Records
- 81.169.145.82 ↩ w82.rzone.de
- 2a01:238:20a:202:1082:: ↩ w82.rzone.de
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
docks07.rzone.de hostmaster.strato-rz.de 2020051614 86400 7200 604800 300
Primary NS (mname)
docks07.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051614
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades07.rzone.de
docks07.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:82.139.254.197 include:_spf.strato.com include:spf.protection.outlook.com +a:v45634.1blu.de ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ 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
2 records- MS=2F537CC78CDBDF20E039624A9EF6468C9B0E3936
- SPFv=spf1 mx ip4:82.139.254.197 include:_spf.strato.com include:spf.protection.outlook.com +a:v45634.1blu.de ~all
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