Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rueko.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 17:27:52 UTC · ↺ Refresh
MX Hostnames
- rueko-de.mail.protection.outlook.com
MX Priorities
- rueko-de.mail.protection.outlook.com: 0
A / AAAA Records
- 46.4.195.1 ↩ obiwan.sturmlan.net
Mail Server IPs
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.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
SOA Record
Raw SOA
ns1123.ui-dns.org hostmaster.schlund.de 2017030661 28800 7200 604800 300
Primary NS (mname)
ns1123.ui-dns.org
Admin Email (rname)
hostmaster@schlund.de
Serial
2017030661
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1123.ui-dns.com
ns1123.ui-dns.de
ns1123.ui-dns.biz
ns1123.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 a a:sema-mail.rueko.de a:sema.rueko.de ip4:84.245.142.228 include:spf.protection.outlook.com include:_spf.perfora.net include:143588345.spf08.hubspotemail.net include:_spf.kundenserver.de ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
3 records- v=verifydomain MS=9733562
- google-site-verification=EcbKFmBRPz4A8de-v9u5d5nsjg7z9KrF8gdZv5K5_Ic
- SPFv=spf1 a a:sema-mail.rueko.de a:sema.rueko.de ip4:84.245.142.228 include:spf.protection.outlook.com include:_spf.perfora.net include:143588345.spf08.hubspotemail.net include:_spf.kundenserver.de ~all
Full email verification for rueko.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits