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Postfix Configuration As Relay For Office365 to Solve The Error "Client Was Not Authenticated To Send Anonymous Mail During MAIL FROM" (Doc ID 2013640.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 6.5 with Unbreakable Enterprise Kernel [3.8.13] and later
Linux x86-64

Symptoms

 

 Postfix relay for office365 ends with error "Client was not authenticated to send anonymous mail during MAIL FROM"

 

Changes

 Postfix used as a Relay for office365

Cause

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