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Not Able To Relay Mail (SMTP) Through Microsoft Office 365 Mail Server (Doc ID 2607628.1)

Last updated on DECEMBER 10, 2019

Applies to:

Oracle Cloud Infrastructure - Version N/A and later
Linux OS - Version Enterprise Linux 3.0 to Oracle Linux 8.0 [Release RHEL3 to OL8]
Linux x86-64

Symptoms

Problems when relaying mail from a Linux system through Microsoft Office 365 SMTP server, and the following error shows in the mail logs (/var/log/maillog):

status=bounced (host smtp.office365.com[<IP-Address>] said: 554 5.2.0 STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied; Failed to process message due to a permanent exception with message Cannot submit message

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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