Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blackhole.djurby.se
Disposable
✓ Yes
Unknown
⚠ Yes
Yes
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 01:39:42 UTC · ↺ Refresh
MX Hostnames
- mail.mailinator.com
MX Priorities
- mail.mailinator.com: 10
A / AAAA Records
- 109.235.174.20 ↩ ing.r103.websupport.se
- 2a00:1968::1:109:235:174:20 (no PTR)
Mail Server IPs
- 23.239.11.30 ↩ mail.mailinator.com
SOA Record
Raw SOA
ns1.loopiagroup.com dnsadmin.loopiagroup.com 1771748233 7200 2048 1048576 2560
Primary NS (mname)
ns1.loopiagroup.com
Admin Email (rname)
dnsadmin@loopiagroup.com
Serial
1771748233
Refresh
7200s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
ns2.loopiagroup.com
ns1.loopiagroup.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no 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
1 record- SPFv=spf1 a ?all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for blackhole.djurby.se
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits