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sdl.usu.edu

Email infrastructure report · Last checked

Summary

sdl.usu.edu uses Self-hosted / Custom for email and has SPF configured. It is a catch-all domain.

Mail provider

ProviderSelf-hosted / Custom self-hosted
Primary MXprimary.us.etp.fireeyegov.com

MX records

PriorityHostnameIPs
10primary.us.etp.fireeyegov.com15.200.32.1, 15.200.32.2, 15.200.32.3
20alt1.us.etp.fireeyegov.com15.200.32.2, 15.200.32.3, 15.200.32.1
30alt2.us.etp.fireeyegov.com15.200.32.2, 15.200.32.3, 15.200.32.1
40alt3.us.etp.fireeyegov.com15.200.32.1, 15.200.32.2, 15.200.32.3

Authentication

SPF✓ Present -all
DKIM? Not detected via common selectors
DMARC✗ Missing
Raw SPF record
v=spf1 include:amazonses.com include:_spf.fireeyegov.com ip4:204.113.92.115 ip4:204.113.92.116 -all

Email behavior

Catch-all✓ Yes
Disposable✗ No
Free provider✗ No
STARTTLS✓ Supported
SMTP response349ms
SMTP banner220 2.0.0 mx.us.email.fireeyegov.com ESMTP

What this means

This domain is missing DKIM, DMARC, which weakens its protection against email spoofing. Adding these records would improve deliverability and reduce the risk of impersonation.

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curl https://api.checkmail.dev/v1/verify \
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