Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gsi-bonn.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 10:55:21 UTC · ↺ Refresh
MX Hostnames
- gsibonn-de0i.mail.protection.outlook.com
MX Priorities
- gsibonn-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 45.144.187.21 (no PTR)
Mail Server IPs
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.itr-service.de it.gsi-bonn.de 1751652781 10800 3600 604800 10800
Primary NS (mname)
ns2.itr-service.de
Admin Email (rname)
it@gsi-bonn.de
Serial
1751652781
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
pdns02.domaincontrol.com
ns2.itr-service.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:agenturserver.de include:spf.protection.outlook.com include:oracleindustry.com -all
📊 DNS lookups: 5/10
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
8 records- DMARCv=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
- MS=01F0D21FD0599C523305A028C50511CF5A2A9460
- if26qvjcd81je48u3m6m4otqsa
- SPFv=spf1 a mx include:agenturserver.de include:spf.protection.outlook.com include:oracleindustry.com -all
- domainVerification=c7904444-3693-48f2-80d1-eed2e06a4362
- 9860pqo4c9i7nchq88ip875hcl
- MS=ms59378274
- _globalsign-domain-verification=fvfuamvo9c7fjgh5ej7r5tdvkp
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