I am using the built in Windows 10 Mail app for my eMail and calendar. Whenever I right-click a file and choose Send To > Mail Recipient, Windows 10 complains that there is no default mail application associated. I can go into Control Panel\Programs\Default Programs\Set Default Programs, and it shows that Mail is set as default. However if you go into Control Panel\Programs\Default Programs\Set Associations, I note that .eml Current Default is set to: Unknown Application. If you go to click "Change Programs" with .eml highlighted, it does not present the mail app as a option to choose. If you choose to search the windows store, the default search it performs itself for the phrase EML doesn't return the mail app. If you run a search for MAIL you can find the app, but it says it is already installed and you can't SELECT it anywhere to make the file association. I also can't seem to find the mail app .EXE to manually point to the program either. I should also note I've never had Microsoft Office installed on this computer. I can't really justify an Office 365 subscription for multiple computers. It's just too pricey for home use and my family.
At this point I'm just stuck. I chatted with a Margie P on the online chat, but even after showing her the problem she didn't really seem to understand the issue. I believe she didn't understand because even after showing her the problem while she was remotely connected to me, she later said this, "I would suggest that you always use Mail app when it comes to sending any mails and documents, as it is your default program for sending and receiving mails." I'm like really?
Please help, I'd really like to use the Send To feature properly and I'm feeling a bit stuck here.