PUT/Edit MIME email content with microsoft graph
Graph API allows me to get the MIME content of email calling following graph api request: GET https://graph.microsoft.com/beta/me/messages//$value .
As we work on O365 app which changes content of email, it would be great to have possibility to edit the MIME content thru PUT operation.
DHONDT Yves (ENGIE Energy Management) commented
Being able to set the MIME content is useful in the case of signed and encrypted emails.
Most external libraries for generating SMIME content allow the MIME content to be exported. Being able to import that content in the Microsoft Graph API would enable scenarios where secure mails can be sent.
The EWS API supports setting message content via the UpdateItem method (as documented here https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/updateitem-operation).
The product I work on requires the same functionality to be available via MS graph to be able to migrate to it.