This plugin allows you to set almost all options of emails sent by WordPress. In fact, it just simply modified the value of the PHPMailer's member variables. Warning: This plugin is only for advanced users. You should know exactly what effect each option will have on the behavior of PHPMailer when you use this plugin.
- Upload the full directory into your wp-content/plugins directory
- Activate the plugin at the plugin administration page
- Open the plugin configuration page, which is located under "Settings -> WP Mail Options" and customize settings.
You can download WP Mail Options from WordPress.
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Why does the From address still show as the default or show up as 'sent on behalf of' the default address?
Possibly your mail server has added a Sender: header or is configured to always set the envelope sender to the user calling it.
