Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
usanjudas.ac.cr
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 07:00:16 UTC · ↺ Refresh
MX Hostnames
- usanjudas-ac-cr.mail.protection.outlook.com
MX Priorities
- usanjudas-ac-cr.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.46.52 (no PTR)
- 172.67.223.224 (no PTR)
- 2606:4700:3035::ac43:dfe0
- 2606:4700:3031::6815:2e34
Mail Server IPs
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
addyson.ns.cloudflare.com dns.cloudflare.com 2396652243 10000 2400 604800 1800
Primary NS (mname)
addyson.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396652243
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
trevor.ns.cloudflare.com
addyson.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 +ip4:107.180.73.191 +include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
2 records- SPFv=spf1 +ip4:107.180.73.191 +include:spf.protection.outlook.com -all
- op9abpg0h6o87tmvs8mj1bfu0h
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