Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
bester.energy
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-09-23 11:29:05 UTC · ↺ Refresh
MX Hostnames
- bester-energy.mail.protection.outlook.com
MX Priorities
- bester-energy.mail.protection.outlook.com: 0
A / AAAA Records
- 209.42.192.150 ↩ alpha.impulsotecnologico.com
Mail Server IPs
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.209.28 ↩ mail-cpjpr05cu00104.inbound.protection.outlook.com
- 52.101.209.153 ↩ mail-cpjpr04cu00101.inbound.protection.outlook.com
- 52.101.91.21 ↩ mail-matpr05cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c967::c ↩ mail-cpjpr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca21::8 ↩ mail-matpr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca21::a ↩ mail-maspr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.impulsotecnologico.com dominios.impulsotecnologico.com 2026081901 3600 1800 1209600 86400
Primary NS (mname)
ns1.impulsotecnologico.com
Admin Email (rname)
dominios@impulsotecnologico.com
Serial
2026081901
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.impulsotecnologico.com
ns2.impulsotecnologico.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:209.42.192.150 +a +mx +ip4:88.26.214.40 include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
1 record- SPFv=spf1 ip4:209.42.192.150 +a +mx +ip4:88.26.214.40 include:spf.protection.outlook.com ~all
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