Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
osl-online.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 18:16:14 UTC · ↺ Refresh
MX Hostnames
- mail.osl-online.de
MX Priorities
- mail.osl-online.de: 10
A / AAAA Records
- 144.76.55.199 ↩ hoover-ssl.servers.verwaltungsportal.de
- 2a01:4f8:fff3:7b::3 ↩ hoover-ssl.servers.verwaltungsportal.de
Mail Server IPs
- 93.122.65.5 ↩ mail.osl-online.de
SOA Record
Raw SOA
ns1123.ui-dns.biz hostmaster.1und1.de 2016110544 28800 7200 604800 300
Primary NS (mname)
ns1123.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2016110544
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1123.ui-dns.de
ns1123.ui-dns.org
ns1123.ui-dns.com
ns1123.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:_spf-eu.ionos.com include:spfa.myconvento.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- apple-domain-verification=3grWkffeuDqYVdEo
- google-site-verification=_r8hF_fVLsxqVxj2SpZKZmZUZ-dxTXp-EczfQbA1pXY
- apple-domain-verification=KNodh0nUtNpRfRdr
- MS=1B6DBE9AC80E1FE19FAB5907A98163D89C1EF419
- SPFv=spf1 mx include:_spf-eu.ionos.com include:spfa.myconvento.com ~all
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