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Oracle Linux: Sendmail Fails to send Email with "DSN: Host unknown" Error (Doc ID 2715878.1)

Last updated on MAY 20, 2021

Applies to:

Linux OS - Version Oracle Linux 5.0 and later
Linux x86-64
Linux x86

Symptoms

Sendmail fails to send email with "DSN: Host unknown" error

Changes

 Sendmail is newly setup on the server.

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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