I added a shortcut via the shell:sendto folder that basically allows me to quickly email a scanned PDF to the fire service where I do consulting work.

I have it set up to properly send it to the person I need, the person who needs to be CC'd, and also the subject line and a brief message are included.

This defaults to my default Outlook account, and I have to change it each time before I hit send. Is it possible to use the command line to send from a specific email account?

"C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE" /c ipm.note /m "email@email.com&cc=email1@email.com&subject=Controlled%20Substance%20Signature(s)&body=Please see attached controlled substance form(s)." /a