Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oldenbourg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 11:59:12 UTC · ↺ Refresh
MX Hostnames
- oldenbourg-de.mail.protection.outlook.com
MX Priorities
- oldenbourg-de.mail.protection.outlook.com: 10
A / AAAA Records
- 52.57.202.145 ↩ ec2-52-57-202-145.eu-central-1.compute.amazonaws.com
- 63.182.3.229 ↩ ec2-63-182-3-229.eu-central-1.compute.amazonaws.com
- 18.185.9.34
Mail Server IPs
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-59.awsdns-07.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-59.awsdns-07.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-876.awsdns-45.net
ns-1206.awsdns-22.org
ns-1586.awsdns-06.co.uk
ns-59.awsdns-07.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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- google-site-verification=IO9dI1VTtnu-mRyQLMu-YC_DKNmluB0skO7WRz3CYx8
- SPFv=spf1 mx include:spf.protection.outlook.com ~all
- MS=ms42338935
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