Domain Overview
DNS: ✓ 14d ago
Checker: ✓ 14d ago
ursus-atelier.ch
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-13 13:41:21 UTC · ↺ Refresh
MX Hostnames
- smtp.backslash.ch
MX Priorities
- smtp.backslash.ch: 5
A / AAAA Records
- 193.135.56.30 ↩ srv-hosting02.backslash.ch
Mail Server IPs
- 193.135.56.22 ↩ srv-mail.backslash.ch
SOA Record
Raw SOA
ns2.backslash.ch webmaster.backslash.ch 2024051966 7200 120 2419200 10800
Primary NS (mname)
ns2.backslash.ch
Admin Email (rname)
webmaster@backslash.ch
Serial
2024051966
Refresh
7200s
Retry
120s
Expire
2419200s
Minimum TTL
10800s
Nameservers (NS)
ns2.backslash.ch
ns3.backslash.ch
ns1.backslash.ch
SPF Record
✓ Strict (-all)
v=spf1 a mx a:diwa8mx.li mx:mail.diwa8mx.li ip4:193.135.56.0/24 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
1 record- SPFv=spf1 a mx a:diwa8mx.li mx:mail.diwa8mx.li ip4:193.135.56.0/24 -all
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