Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ruderer.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 04:59:04 UTC · ↺ Refresh
MX Hostnames
- ruderer-de.mail.protection.outlook.com
MX Priorities
- ruderer-de.mail.protection.outlook.com: 0
A / AAAA Records
- 176.52.240.13 ↩ r2882.agenturserver.it
Mail Server IPs
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1062.ui-dns.org hostmaster.schlund.de 2017050244 28800 7200 604800 300
Primary NS (mname)
ns1062.ui-dns.org
Admin Email (rname)
hostmaster@schlund.de
Serial
2017050244
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1062.ui-dns.org
ns1062.ui-dns.de
ns1062.ui-dns.biz
ns1062.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:spf.crsend.com include:agenturserver.de -all
📊 DNS lookups: 5/10
✓ 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: 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
3 records- DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx3qQ3IIUckYIuXazB9KFJ6DerletOGDU012yVejF1EGMF7t7ABtiEkdf1KDWR1KkVJb7SerTmouXH/CyoqZHG74wcMHeGHRMa3belSGUAQDsXKHVPci7QvaCh/23hsFznZ8E5noi0puAq+aI6lfVU8VxXDWUWi+qJu+CQjDHAxL0qhcs1eIDU+fAkrZ0c1aVG3YonxIxbH1hf2nqVyWa/zZ4yQ9NBKCJ/S+fvjn3pABC2ddGgICM3grni2KbG0Te/1lw00gzUaAMCueX2oOFcrWA3NNam2q1eY6085ne2D6YXwzh2KrVr9O0H3C0aOQ+xeI8AQ3bLJtGhbGYuWL1WwIDAQAB
- SPFv=spf1 a mx include:spf.protection.outlook.com include:spf.crsend.com include:agenturserver.de -all
- Z+q3pTnWd9AjSVR/jaZ3vqhw2AuSAZD/EUENPBLOBgdjScALCKjHAA485iXHaoePhnaaK5+gzQ+93OLasbwU9w==
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