Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
collisonltd.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 07:44:02 UTC · ↺ Refresh
MX Hostnames
- mx19-2.mycloudmailbox.com
- mx19-1.mycloudmailbox.com
MX Priorities
- mx19-1.mycloudmailbox.com: 10
- mx19-2.mycloudmailbox.com: 20
A / AAAA Records
- 145.223.77.209 (no PTR)
Mail Server IPs
- 173.46.152.138 ↩ mx19-1.mycloudmailbox.com
- 173.46.152.139 ↩ mx19-2.mycloudmailbox.com
SOA Record
Raw SOA
ns17.domaincontrol.com dns.jomax.net 2026021600 28800 7200 604800 600
Primary NS (mname)
ns17.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026021600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns18.domaincontrol.com
ns17.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:173.46.152.128/25 ip4:199.244.76.0/24 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict 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
8 records- ea070j0bnbjdnjaoredga557v3
- frolbt6u3bssicngfek1v4muu2
- gli9i9rrnk5tf5sak69vcgomp0
- ign2482ed66apfdn7rh1nosn3g
- pjbc7tlo4sf713jr5ujo5m4tsm
- SPFv=spf1 ip4:173.46.152.128/25 ip4:199.244.76.0/24 -all
- v=verifydomain MS=1345329
- cah094ukacnkp47r2qic645fh1
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
See demo & docs
Deep verification
Full email verification for collisonltd.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits