bp_custom.php

`<?php

//function buddydev_mail_on_new_group_activity( $user_ids, $args ) {

	if ( empty($user_ids ) ) {
		return ;
	}
	//do a bulk query
	$users = get_users( array( 'include' => $user_ids ) );

	$group  = new BP_Groups_Group( $args['group_id'] );
	$loggedin_user_display_name = bp_get_loggedin_user_fullname();

	$activity = new BP_Activity_Activity( $args['activity_id'] );

	$activity_content = $activity->content;
	$activity_permalink = bp_activity_get_permalink( $activity->id, $activity );

	$subject = sprintf( '%1$s posted to %2$s', $loggedin_user_display_name, $group->name );
	$message = <<<'MAINCONTENT'
	Hi %1$s,
	%2$s posted...

	%3$s

	Link: %4$s
MAINCONTENT;

	foreach ( $users as $user ) {
		$message = sprintf( $message, $user->displayname, $loggedin_user_display_name, $activity_content, $activity_permalink );
		wp_mail( $user->user_email, $subject, $message );
	}
}
add_action( 'bp_group_activities_notify_members', 'buddydev_mail_on_new_group_activity', 10, 2 );
		}
	}
}