Is it possibile to to use "raw_source" Argument (POST /Emails Rest API / Archive) to upload existing .eml mail file?

Hello,

I'm trying to archive in SugarCRM a email message saved as .eml File.

Can I used the raw_source arguments inside Rest API POST /Emails "archive" to populate email fields inside SugarCRM?

I tried to upload directly the eml file (using postman): the post command return the id of new mail record:

....

but the fields in SugarCRM was not populated by the content of EML /raw_code.

is there an example of how to use the raw_code argument?

Thank in advance,

Best Regards,

Vincenzo