Overrides WordPress default e-mail sender information (WordPress wordpress@yourdomain.com) including Reply-Path with information you provided. The default e-mail sender information is typically used for WordPress standard e-mails like “new user registration” and similar e-mails.
For standard WordPress installation this plugin will use the Sitename and admin e-mail address provided in the general settings. For multi-network installations it will use network name and e-mail address provided in the network admin general settings.
For more info, visit http://webartisan.se/hw-override-default-sender/