On Yahoo mail is fine, onApple mail when I delete a message it goes away and not in trash? Have to delete on Yahoo site.

Check that email account's Mailbox Behaviors to determine how it manages deleted messages.

Change Mailbox Behaviors preferences in Mail on Mac - Apple Support

Depending on the email service provider, you may have several options. The dropdown selection adjacent to Trash Mailbox specifies how those messages are handled. Those selections depend on how the server is configured, so in your case you probably need to log into Yahoo! Mail's webmail interface to determine the available options.