How Can I Set Up Automatic Email Printing Without a User Being Signed In?

If I were tackling this, I would create a Power Automate flow that receives the email and converts it into a PDF. Then, you could send that PDF to an address like [email protected], which your printer will process using IMAP. If the formatting gets wonky, maybe set up a dedicated desktop next to the printer that logs in automatically and starts Outlook to handle the printing.

You might want to check out Foldermill. It can monitor your mailbox for emails that match certain criteria and then automatically print them. The cool part is it runs as a service on any machine you choose, so you won't need to keep a user signed in. Just be cautious, as it does require some setup and can be a bit tricky to tweak if you haven't used it in a while.

Another idea is to use a low-cost micro PC near the printer. Set it up with auto-login and have Outlook configured to start up. You can apply the same inbox rule there to print the emails. It’s a straightforward solution if you don’t need advanced features.

You could also look into a solution like Fetchmail along with some additional scripting. It might sound complex, but it can give you flexibility to automate email handling and printing.

If you're on Microsoft 365, consider using Power Automate or even Power Automate for desktop. It might need a premium license, but that could simplify the process significantly.