Oracle Linux: Sendmail Fails with Error: "530 5.7.57 SMTP; Client was not authenticated" (Doc ID 2950602.1)

Last updated on MAY 24, 2023

Applies to:

Linux OS - Version Oracle Linux 7.9 with Unbreakable Enterprise Kernel [5.4.17] and later
Linux x86-64

Sendmail fails to authenticate with Windows Exchange server using port 587 with the following error:

The configuration was done as per Doc ID 2757260.1

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In this Document

Symptoms

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