Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
plusheat.co.uk
Yes
✓ Yes
Zoho
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 22:07:20 UTC · ↺ Refresh
MX Hostnames
- mx3.zoho.com
- mx.zoho.com
- mx2.zoho.com
MX Priorities
- mx.zoho.com: 10
- mx2.zoho.com: 20
- mx3.zoho.com: 50
A / AAAA Records
- 172.67.194.218 (no PTR)
- 104.21.36.141 (no PTR)
- 2606:4700:3034::6815:248d (no PTR)
- 2606:4700:3031::ac43:c2da (no PTR)
Mail Server IPs
- 136.143.191.44 ↩ mx.zoho.com
- 136.143.183.44 ↩ mx.zohomail.com
SOA Record
Raw SOA
dalary.ns.cloudflare.com dns.cloudflare.com 2397030069 10000 2400 604800 1800
Primary NS (mname)
dalary.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397030069
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
rustam.ns.cloudflare.com
dalary.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:amazonses.com include:zcsend.net include:_spf.elasticemail.com include:sendgrid.net include:zoho.com include:sender.zohobooks.com include:spf.zoho.com include:transmail.net ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- facebook-domain-verification=zovkxt2427ah8uiza0gotuw0ckvelo
- SPFv=spf1 include:amazonses.com include:zcsend.net include:_spf.elasticemail.com include:sendgrid.net include:zoho.com include:sender.zohobooks.com include:spf.zoho.com include:transmail.net ~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
See demo & docs
Deep verification
Full email verification for plusheat.co.uk
SMTP handshake, catch-all detection, SPF/DKIM/DMARC analysis, and Yahoo/Outlook verification.
Get 1,000 Free Credits