Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ga-bonn.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 20:20:29 UTC · ↺ Refresh
MX Hostnames
- gabonn-de0e.mail.protection.outlook.com
MX Priorities
- gabonn-de0e.mail.protection.outlook.com: 0
A / AAAA Records
- 193.194.144.198 ↩ 198.144.194.193.in-addr.arpa
Mail Server IPs
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
SOA Record
Raw SOA
dns01.circit.de domains.circit.de 1764594405 28800 7200 604800 300
Primary NS (mname)
dns01.circit.de
Admin Email (rname)
domains@circit.de
Serial
1764594405
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
dns03.circit.de
dns02.circit.de
dns01.circit.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:193.194.144.165 include:spf.protection.outlook.com include:spf-repost-eu.tmcas.trendmicro.com include:_spf.salesforce.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict 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
4 records- google-site-verification=zDtF8CHTlkTafvaVgmRgKVq6-Ar4N0WvZG85ghNkpD0
- atlassian-domain-verification=DHRvNjKNjmD9oiBwnFRoI5QEHateKZzVUzqUg90EUx/FJcKEbhcEI2xpl2KYHOn7
- SPFv=spf1 mx ip4:193.194.144.165 include:spf.protection.outlook.com include:spf-repost-eu.tmcas.trendmicro.com include:_spf.salesforce.com -all
- MS=ms53832840
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