Hello Jordan Brown, Thank you for bringing this to our attention. We appreciate that you've taken the time to post your concern here in Microsoft Community Forum. We understand that you want to print an attachment on the email without opening or saving them. Let’s check on this together and find ways to address this matter.
Email message attachments can be printed without opening the file. Attachments can be printed from an open message window or from the Reading Pane. If a message has multiple attachments, you can choose to print one or all of the attachments.
Print an attachment
To print an attachment from an open message or the Reading Pane, do the following: ( double click on the email first to open on another window)
- Click the attachment icon below the message header, and then click Attachments
- In the Actions group, click Quick Print.
To print attachments when you print a message, first ensure that the Print attached files option is selected. After this setting is turned on, it remains on until you turn it off.
- In the message list, click the message that has attachments that you want to print.
- Click the File tab.
- Click Print.
- Under Printer, click Print Options.
- In the Print dialog box, under Print Options, select the Print attached files check box.

Notes:
- Attachments print only to the default printer. For example, if printer A is the default, and you choose to print a message that has an attachment on printer B, the message prints on printer B, but the attachment prints on printer A. If you want to send the attachment to a specific printer, double-click the attachment to open it, and then in the program that opens the attachment, use the print command.
- Some attached files must be opened before they can be printed. For these types of files, Outlook will prompt you to open or save the attachment before it prints. Select Open. You will need to close the attachment file manually after printing.
We look forward to your response on the results. If you have other clarifications about this matter, you can get back to us by replying to this post.
Sincerely, Juhn Jac,Consumer M365 Forum Moderator