My print command does not list the printer used by my printer company to which I email my printer files.
What is required to generate print files for a specific printer model?

Thanks. I went to Apple Support, spent several hours, ran disk first aid and after 8 hours the emails started sending. Hope it keeps working.

Emails with drawing attachments receive a message that file is downloading - try later. It never sends.
This is a major problem. Solutions?