Hi,
I was wondering that is there any plugin for scanning the email and insert the data into the database automatically?
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AFAIK there isn't any plugin to scan as well as save the scanned data to database. But I suggest you to have a look at Create & Read Email Files Utilities which can be used to read the email and then write to data store entity smart service or any other way you may find appropriate for your use, can be used to write the data to database. Hope it helps.