No specific info about version 5.7. Please visit the main page of Direct Mail on Mac Informer.
Find out if the email addresses within your recipient lists are valid or not.
A complete and capable email conversion tool on Mac across different platforms.
Trash mail duplicates moves duplicate messages to Mail trash.
Use Mail-Grab to extract email addresses from your Mail app or text files.
Import OLM to Apple Mail, Thunderbird, Entourage, host of other emails clients.