usp.br

Valid Email Server
Domain Lookup › usp.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
usp.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 00:25:09 UTC · ↺ Refresh

MX Hostnames

  • ALT3.ASPMX.L.GOOGLE.COM
  • ALT2.ASPMX.L.GOOGLE.COM
  • ALT1.ASPMX.L.GOOGLE.COM
  • ASPMX.L.GOOGLE.COM
  • ALT4.ASPMX.L.GOOGLE.COM

MX Priorities

  • alt2.aspmx.l.google.com: 5
  • alt3.aspmx.l.google.com: 10
  • alt4.aspmx.l.google.com: 10
  • aspmx.l.google.com: 1
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

  • 200.144.235.134

Mail Server IPs

  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 173.194.76.27 ↩ ws-in-f27.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
  • 142.251.167.27 ↩ ww-in-f27.1e100.net
  • 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)

SOA Record

Raw SOA a.dns.usp.br hostmaster.usp.br 2018079865 14400 3600 1209600 300
Primary NS (mname)
a.dns.usp.br
Admin Email (rname)
hostmaster@usp.br
Serial
2018079865
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

c.dns.usp.br
b.dns.usp.br
a.dns.usp.br
ns1.ansp.br

SPF Record

✓ Strict (-all)
v=spf1 include:_redesusp.usp.br include:_spf.google.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; pct=10; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 10% of failing messages only

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

10 records
  • adobe-idp-site-verification=3d0fa6faea996f27affdf872d7878e8de055cc8e615d1f003206628cfc51d39d
  • google-site-verification=DfpL6iunQOozEmRpV6jQw7Xzi50WFqkleKUSWFP4E9E
  • MS=D2823B9521EF2B257E8207302DCDC556C00D5564
  • _globalsign-domain-verification=oSaIACRn01QZ_STpNrrROxkvBdtG8B8apWgXLse-yI
  • SPFv=spf1 include:_redesusp.usp.br include:_spf.google.com -all
  • google-site-verification=1zlUdVSw4V3to-BYPd-ShRkHcItALQOMo4rYdpZgIMc
  • ZOOM_verify__T-3IyYPSHyIWah1a_5IMA
  • google-site-verification=B-a5E-Sy8BehZhS4BFLEwaGphwi9Cg4X399gA3LVAJw
  • google-site-verification=doG9hHS-x68eyfg8VhLH1AkrYb_dl3k7i1j1weA7NlA
  • cisco-ci-domain-verification=72ade127784397f7e0e3dfb71bade67af550814769bb5512109576ef440f9c8c
Full email verification for usp.br

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