Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
estacio.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-06 14:06:44 UTC · ↺ Refresh
MX Hostnames
- estacio-br.mail.protection.outlook.com
MX Priorities
- estacio-br.mail.protection.outlook.com: 10
A / AAAA Records
- 13.33.252.79 ↩ server-13-33-252-79.jfk50.r.cloudfront.net
- 13.33.252.60 ↩ server-13-33-252-60.jfk50.r.cloudfront.net
- 13.33.252.38 ↩ server-13-33-252-38.jfk50.r.cloudfront.net
- 13.33.252.117 ↩ server-13-33-252-117.jfk50.r.cloudfront.net
Mail Server IPs
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1478.awsdns-56.org awsdns-hostmaster.amazon.com 2026040101 7200 900 1209600 86400
Primary NS (mname)
ns-1478.awsdns-56.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2026040101
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-810.awsdns-37.net
ns-1478.awsdns-56.org
ns-1646.awsdns-13.co.uk
ns-421.awsdns-52.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf1.auinmeio.com.br include:spf.comunique-se.com.br include:_spf.salesforce.com exists:%{i}.spf.rnmk.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected], mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
13 records- questionpro-mail=qJ_LsueF0cKWgZgiSlhsrQ
- SPFv=spf1 include:spf.protection.outlook.com include:spf1.auinmeio.com.br include:spf.comunique-se.com.br include:_spf.salesforce.com exists:%{i}.spf.rnmk.com -all
- workplace-domain-verification=70659c00-3932-4615-8d00-af71c3d760dc
- _2i16wa74ng2axb3k0h0to23o040gw25
- facebook-domain-verification=uz4mqqk5e2p8emm3a1522lyljme9h0
- google-gws-recovery-domain-verification=65783152
- google-site-verification=AEm0r7gW4cwjG3Lu1KUgbGUExriZoDyt0pv-EM2jXpE
- google-site-verification=MNqSPq-7ORKMVIucMN2M6K4Mc9z2eo9RAYlXCtmJT_0
- google-site-verification=ftGFAldbangGba5GwGJKCiENXHE9TkR7S0IptrUfPfw
- google-site-verification=zbxmC-fx7DYoIrUN6JCntngnHnNn82ku6S7F0MgD8YE
- have-i-been-pwned-verification=dweb_jsr1yczj7c5dq2swoaphef25
- miro-verification=ed0392ace02c16a663d0f7d6144e9b189571169c
- mongodb-site-verification=Ue6n9f9KPkSdjyDQHw3FtIaWDd6yyeRM
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