Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sanleonenergy.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 21:07:59 UTC · ↺ Refresh
MX Hostnames
- sanleonenergy-com.mail.protection.outlook.com
- sanleonenergy-com.mail.protection.outlook.com
MX Priorities
- sanleonenergy-com.mail.protection.outlook.com: 10
- sanleonenergy-com.mail.protection.outlook.com: 0
A / AAAA Records
- 99.83.190.102 ↩ aacb0a264e514dd48.awsglobalaccelerator.com
- 75.2.70.75 ↩ aacb0a264e514dd48.awsglobalaccelerator.com
Mail Server IPs
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.fastsecurehost.com admin.fastsecurehost.com 2026030200 3600 900 1209600 10800
Primary NS (mname)
ns1.fastsecurehost.com
Admin Email (rname)
admin@fastsecurehost.com
Serial
2026030200
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
ns1.fastsecurehost.com
ns2.fastsecurehost.com
ns3.fastsecurehost.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- MS=ms84898656
- SPFv=spf1 include:spf.protection.outlook.com ~all
- MS=8B2E60342061B744457DB8389839D2B89870F767
- 874x914gUBYgYMzkOOIBAdUYMrAs163438Jkv9oPQUU7SgtuoU6yIAcfXiLt1l8ZeR10sRNjiZoeAEoYuXH0gw==
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 sanleonenergy.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits