Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smilevision.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 06:34:43 UTC · ↺ Refresh
MX Hostnames
- mail3.zenesis.com
MX Priorities
- mail3.zenesis.com: 10
A / AAAA Records
- 81.17.79.75 ↩ static81.17.79.75.swisp.co.uk
Mail Server IPs
- 81.17.79.78 ↩ mail3.zenesis.com
SOA Record
Raw SOA
ns.smilevision.co.uk postmaster.smilevision.co.uk 2026011204 3600 600 86400 3600
Primary NS (mname)
ns.smilevision.co.uk
Admin Email (rname)
postmaster@smilevision.co.uk
Serial
2026011204
Refresh
3600s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
ns1.zenesis.net
ns.zenesis.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:81.17.79.77/32 a:mail.zenesis.com. a:mail2.zenesis.com. -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 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
4 records- atlassian-domain-verification=fE4yEGgsDB1nEqIs4AM9RYIEcLyyrCYJQSK9HgVSMmpj89G054mgZOuT2z0Z4Ekt
- google-site-verification=gDRi2dPxzGMz94omPU9icmlubLafNLDu7RwQ83hsjoA
- SPFv=spf1 mx ip4:81.17.79.77/32 a:mail.zenesis.com. a:mail2.zenesis.com. -all
- brevo-code:7b16e1f46dea894f970fde7e862941c9
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 smilevision.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits