Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tg-sachsenhausen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 06:13:27 UTC · ↺ Refresh
MX Hostnames
- rmail08.rackbutler.de
MX Priorities
- rmail08.rackbutler.de: 5
A / AAAA Records
- 185.199.142.86 ↩ rweb06.rackbutler.de
Mail Server IPs
- 185.199.142.78 ↩ rmail08.rackbutler.de
SOA Record
Raw SOA
rweb06.rackbutler.de root.rweb06.rackbutler.de 2024022465 3600 600 1209600 3600
Primary NS (mname)
rweb06.rackbutler.de
Admin Email (rname)
root@rweb06.rackbutler.de
Serial
2024022465
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
nsb8.schlundtech.de
nsc8.schlundtech.de
nsd8.schlundtech.de
rweb06.rackbutler.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:tg-sachsenhausen.de ip4:185.199.142.86 include:rackbutler.de ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 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
3 records- _pb48gwidujsrckhmgxpph2obn6sidzp
- _d2tv11dtw26tl1weczznob7ww789ph9
- SPFv=spf1 a mx a:tg-sachsenhausen.de ip4:185.199.142.86 include:rackbutler.de ~all
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