student.csulb.edu

Email infrastructure report · Last checked 30 Jul 2026, 02:52 UTC

Summary

student.csulb.edu uses Microsoft 365 for email and has SPF and DKIM configured. It is not catch-all.

Mail provider

ProviderMicrosoft 365 business

Primary MXstudent-csulb-edu.mail.protection.outlook.com

MX records

Priority	Hostname	IPs
10	student-csulb-edu.mail.protection.outlook.com	52.101.10.16, 52.101.9.11, 52.101.40.0, 52.101.41.180, 2a01:111:f403:c946::5, 2a01:111:f403:c927::, 2a01:111:f403:c902::7, 2a01:111:f403:c946::6

Authentication

SPF✓ Present ~all

DKIM✓ Found (selectors: selector1)

DMARC✗ Missing

Raw SPF record

v=spf1 ip4:137.145.0.0/16 ip4:174.90.126.0/23 ip4:208.75.120.0/22 ip4:64.72.147.142 include:spf.protection.outlook.com include:a._spf.brightspace.com include:_spf1.student.csulb.edu ~all

Email behavior

Catch-all✗ No

Disposable✗ No

Free provider✗ No

STARTTLS✓ Supported

SMTP response316ms

SMTP banner220 CY4PEPF0000FCC3.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Thu, 30 Jul 2026 02:52:44 +0000 [08DEEC50021963A6]

What this means

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

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