Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
useblu.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 06:05:05 UTC · ↺ Refresh
MX Hostnames
- useblu-com-br.mail.protection.outlook.com
MX Priorities
- useblu-com-br.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
chelsea.ns.cloudflare.com dns.cloudflare.com 2398902498 10000 2400 604800 1800
Primary NS (mname)
chelsea.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398902498
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
karl.ns.cloudflare.com
chelsea.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:sendgrid.net include:7012573.spf03.hubspotemail.net include:mail.zendesk.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
17 records- 6Z9DF3M01JRCFBX4UD4GC90VDJKDT97X2ELRWHOC
- OO3RIOZN5WNL8IFU1K0UXXRWIA7LM35TALWKW9EN
- google-site-verification=C3HeXUQ6_UpbOp1K0HQY-kV-XYaoE8nL6F2zJ2VoqVs
- google-site-verification=SKZNpbp6L7E_8dRUlqUR8axBrqSVCIPiFYae12jVsJU
- SPFv=spf1 mx include:spf.protection.outlook.com include:sendgrid.net include:7012573.spf03.hubspotemail.net include:mail.zendesk.com -all
- google-site-verification=pQVI10BuBqwylml7Knd2qZXzgkYiPh0S0FtE8qrdh1s
- cursor-domain-verification-z3dz4q=mJxBBIp61PqffmDFcsdpyYtbD
- fortinet-fortiphish-site-verification=wykgfTjyEzLwk5ZYyzWzWk
- google-site-verification=3JTC1AWQ2SJmHLRjTybm5UbCqoLNxwzENUhn3pHySwo
- ZOOM_verify_iugb0DoJQY-602bPjWXkfw
- google-site-verification=-qAizQOTBWkHOoQvVqkx8ZVz2ZiqDniVA5W8oHrwZZE
- FaqDsEstznw1bZfe17lsXkasz6rt7NjtZj1TlyJnvb8=
- 99D48721XMYL9TDTSX6H5M5F8CB4YG7RJI7D82C4
- b660aa75-9d54-4924-a4c7-7b0f9509323e
- facebook-domain-verification=m3n5f2pimc8pd18vqz2awotqlsvken
- apple-domain-verification=kijMeUOswNasYtvl
- atlassian-domain-verification=jASxKtHT9mdA3J5NOBbZMXge4TuPxU1d234dNx6idbLXO4CPzFpfcTRlG0FzXaRU
Full email verification for useblu.com.br
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