Hello, I'm having trouble setting up additional mailboxes for sending emails. I have my own domain and a corporate email address. When I associate this account to send emails with my domain from Yahoo, I'm not prompted for the SMTP server or outgoing port; I'm only asked for my email address, password, and a basic verification to confirm the account belongs to me. The problem is that all the emails I send from my Yahoo account to my clients or colleagues are being diverted to the spam folder, no matter how many times I mark the email as safe.
Is there any way to fix this issue or access an advanced configuration where I can modify this problem?