Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bc3.es
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 08:52:37 UTC · ↺ Refresh
MX Hostnames
- bc3-es.mail.protection.outlook.com
MX Priorities
- bc3-es.mail.protection.outlook.com: 10
A / AAAA Records
- 217.76.130.154 ↩ llgn043.servidoresdns.net
Mail Server IPs
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
dns21.servidoresdns.net hostmaster.servidoresdns.net 2009073964 21600 3600 2419200 60
Primary NS (mname)
dns21.servidoresdns.net
Admin Email (rname)
hostmaster@servidoresdns.net
Serial
2009073964
Refresh
21600s
Retry
3600s
Expire
2419200s
Minimum TTL
60s
Nameservers (NS)
dns22.servidoresdns.net
dns21.servidoresdns.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=F03B322781701AF3BCB2D1A06E0B3FC86B033E53
- SPFv=spf1 include:spf.protection.outlook.com -all
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