<?php

use Illuminate\Database\Migrations\Migration;

class AddBccColumnEmailLog extends Migration {
	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up() {
		Schema::table('email_log', function ($table) {
			$table->string('to')->nullable()->change();
			$table->string('bcc')->after('to')->nullable();
		});
	}

	/**
	 * Reverse the migrations.
	 *
	 * @return void
	 */
	public function down() {
		Schema::table('email_log', function ($table) {
			$table->string('to')->change();
			$table->droPColumn('bcc');
		});
	}
}

Add bcc column in table
Add bcc column in table

Add bcc column to bcc address