Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
esbenergy.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 21:41:51 UTC · ↺ Refresh
MX Hostnames
- mx2.hc1801-12.c3s2.iphmx.com
- mx1.hc1801-12.c3s2.iphmx.com
MX Priorities
- mx2.hc1801-12.c3s2.iphmx.com: 10
- mx1.hc1801-12.c3s2.iphmx.com: 10
A / AAAA Records
- 20.166.226.217 (no PTR)
Mail Server IPs
- 68.232.151.66 ↩ esa.hc1801-12.c3s2.iphmx.com
- 216.71.157.102 ↩ esa.hc1801-12.c3s2.iphmx.com
SOA Record
Raw SOA
iridium.netsource.ie hostmaster.magnet.ie 2026032400 28800 3600 604800 3600
Primary NS (mname)
iridium.netsource.ie
Admin Email (rname)
hostmaster@magnet.ie
Serial
2026032400
Refresh
28800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
iridium.netsource.ie
bogben.netsource.ie
ice.netsource.ie
SPF Record
✓ Strict (-all)
v=spf1 mx include:_spf.salesforce.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- 23EFA9CF32B430BD6562F8F90E0C7CBFDF5296D89E72CE5D90F222610F7D5B9E
- SPFv=spf1 mx include:_spf.salesforce.com include:spf.protection.outlook.com -all
- 0FP7QVmjV7Dl2YRxAcDN3k8RLr2/zjcabqODjP2Kk8uQQ7sGGeZbeYVE1OHEK7LjWxEebL1DnyV2brwrVTC80w==
- MS=ms63944716
- cp6p5qrp6afltlqnbqpp8v6ov5
- esbenergy-website-prd-web-01.azurewebsites.net
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 esbenergy.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits