Multisite

This plugin is designed as a drop-in solution to do a specific thing. If you want to change what it does, just edit it.

I recommend you uninstall Personal Email and use this code as a network-wide snippet or a custom mu-plugin:

function webnashr_email_from( $from_email ) {

	/* Calculate the default address */
	$sitename = strtolower( $_SERVER['SERVER_NAME'] );

	if ( 'www.' === substr( $sitename, 0, 4 ) ) {
		$sitename = substr( $sitename, 4 );
	}

	/* Check that we don't effect emails not sent with the default address */
	if ( 'wordpress@' . $sitename === $from_email ) {
		$from_email = 'your-email-here@example.com';
	}

	return $from_email;
}

add_filter( 'wp_mail_from', 'personal_email_from' );

function webnashr_email_from_name( $from_name ) {
	if ( 'WordPress' === $from_name ) {
		$from_name = 'Enter custom from name here';
	}
	return $from_name;
}

add_filter( 'wp_mail_from_name', 'personal_email_from_name' );

Remember to replace your-email-here@example.com with the email address you want emails sent from and Enter custom from name here with the name you want emails sent from.