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Issue with using Office 365 as email server

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A customer has reported to us that when sending Self Destruct Messages, when using Office 365 as a email server, they were getting the following error:




Text version of Error Data:

 Error: Transaction Failed. The server response was: 5.2.0 STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied; Failed to process message due to permanent exception with message Cannot submit message.




Google for this error returns results saying you may not be able to send from one email address and authorize it to be sent via a second email address.  This is possibly a bug with Office365 SMTP as of June 2020.


In Passwordstate, Under System Setting, change this setting to the option in the screenshot below.  This should fix this issue:









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