Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rsb-stahl.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 19:12:25 UTC · ↺ Refresh
MX Hostnames
- mail.rsb-stahl.de
- mailbackup.rsb-stahl.de
MX Priorities
- mail.rsb-stahl.de: 5
- mailbackup.rsb-stahl.de: 10
A / AAAA Records
- 217.160.0.130 ↩ 217-160-0-130.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::251 ↩ 2001-08d8-100f-f000-0000-0000-0000-0251.elastic-ssl.ui-r.com
Mail Server IPs
- 91.137.59.24 ↩ mail.rsb-stahl.de
- 91.137.58.184 ↩ mail.vario-metall.de
SOA Record
Raw SOA
ns1022.ui-dns.org hostmaster.1und1.com 2017060198 28800 7200 604800 600
Primary NS (mname)
ns1022.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060198
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1022.ui-dns.org
ns1074.ui-dns.biz
ns1121.ui-dns.de
ns1089.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:91.137.59.24 a:rsb-stahl.de include:spf.nl2go.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- google-site-verification=d8A2ITw6foPNzUPjhHgUDlli14i0M8zphnr5HMu2sXM
- brevo-code:fde4bddbef90961fb901551e02cc93ee
- apple-domain-verification=qGl5u0TPdyx5ZnNG
- SPFv=spf1 a mx ip4:91.137.59.24 a:rsb-stahl.de include:spf.nl2go.com ~all
- google-site-verification=MER-mLKLeAwU8lyT6dSnYwzivN0Ss0QDdPGaGAIC7Cc
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