Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
santamarcelina.edu.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 14:41:12 UTC · ↺ Refresh
MX Hostnames
- santamarcelina-edu-br.mail.protection.outlook.com
MX Priorities
- santamarcelina-edu-br.mail.protection.outlook.com: 0
A / AAAA Records
- 104.20.40.89 (no PTR)
- 172.66.171.238 (no PTR)
- 2606:4700:10::ac42:abee
- 2606:4700:10::6814:2859
Mail Server IPs
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
blakely.ns.cloudflare.com dns.cloudflare.com 2399639343 10000 2400 604800 1800
Primary NS (mname)
blakely.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399639343
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
simon.ns.cloudflare.com
blakely.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_spf.elasticemail.com include:_spf.rdstation.com.br include:sendgrid.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; aspf=r; adkim=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
11 records- apple-domain-verification=XOaWSNpgDQSjMdc7
- google-site-verification=bGD4zZdtl7fET19ZGQhAOT0TriDtMPNi4uCWEIvQDFY
- hgepugdnf2m1ahoa38qvgum2fd
- t53q2ga4s5r4iiaumqbp9q6li2
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.elasticemail.com include:_spf.rdstation.com.br include:sendgrid.net ~all
- vuufnt9266hv28ilgi70gnmnfu
- 2RlPvk8oJioxkKGmkd/bMSlaSzkBF0Hs0oPioMPldDhBLF+WQHHxzLwFWA4ZSOPZ6CRnHy5/2oGtXnOmmwAHjQ==
- 3dflmdld7v1p1h5u20sgoggeje
- MS=BF5DB6375596D94F8C906D15426DB62DB14AF26E
- ZOOM_verify_-Q84IwiVTCaxiCUS9CnaVA
- apple-domain-verification=ObZdaDDDnFxF0re6
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for santamarcelina.edu.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits