musc.edu

Email infrastructure report · Last checked 28 Jul 2026, 18:18 UTC

Summary

musc.edu uses Proofpoint for email and has SPF, DKIM, and DMARC configured. It is not catch-all.

Mail provider

ProviderProofpoint security-gateway

Primary MXmxb-001b3801.gslb.pphosted.com

MX records

Priority	Hostname	IPs
10	mxb-001b3801.gslb.pphosted.com	148.163.140.213
10	mxa-001b3801.gslb.pphosted.com	148.163.140.213

Authentication

SPF✓ Present ~all

DKIM✓ Found (selectors: default, k1, s1, s2)

DMARC✓ Present p=none

Raw SPF record

v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

Raw DMARC record

v=DMARC1; p=none; sp=none; rua=mailto:dmarc_agg@vali.email; ruf=mailto:dmarc-ruf@musc.edu; rf=afrf; ri=86400

Email behavior

Catch-all✗ No

Disposable✗ No

Free provider✗ No

STARTTLS✓ Supported

SMTP response326ms

SMTP banner220 mx0b-001b3801.pphosted.com ESMTP mfa-m0165087

What this means

This domain has strong email authentication. Messages claiming to come from @musc.edu can be cryptographically verified by recipients, making spoofing difficult. Deliverability for legitimate mail should be good.

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