To ensure emails are sent to the correct recipient, you can take the following steps:

1. Double-check the email address you are entering.
2. Verify your ‘To:’ address in the mail composition window.
3. Ensure you've added the appropriate address in the ‘CC:’ window if you are sending to multiple recipients.
4. Check your spam filters or junk folder to make sure messages are not being routed incorrectly.
5. Test the email address by sending a direct message to the recipient.