Large files encounter "/usr/bin/sed: Argument list too long"

[Henri Cook]

I liked the look of this and tried to use it to send a spreadsheet, I encountered the error: /usr/bin/sed: Argument list too long when trying to do that. The spreadsheet is 200KB

[ambanmba]

Fixed it here, works on macOS https://github.com/ambanmba/aws-ses-sender