ASP.NET CORE发送邮件给多人

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Text;
using System.Threading.Tasks;

namespace Test
{
    public class MailHelper 
    {
        /// <summary>

        /// 发送电子邮件

        /// </summary>

        /// <param name="smtpserver">SMTP服务器</param>

        /// <param name="enableSsl">是否启用SSL加密</param>

        /// <param name="userName">登录帐号</param>

        /// <param name="pwd">登录密码</param>

        /// <param name="nickName">发件人昵称</param>

        /// <param name="fromEmail">发件人</param>

        /// <param name="toMailArr">收件人集合</param>

        /// <param name="subj">主题</param>

        /// <param name="bodys">内容</param>

        public async Task SendMailAsync(string[] toMailArr,  string bodys)
        {
            SmtpClient smtpClient = new SmtpClient();
            smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式
            smtpClient.Host = "192.xxx.xxx.xxx";//指定SMTP服务器IP
            smtpClient.Credentials = new NetworkCredential("邮箱账号", "邮箱密码");//发送人用户名和密码
            smtpClient.EnableSsl = false;
            MailAddress fromAddress = new MailAddress("[email protected]", "邮件标题");
            //MailAddressCollection addressesArr = new MailAddressCollection();
            MailMessage mailMessage = new MailMessage();
            for (int i = 0; i < toMailArr.Length; i++)
            {
                //MailAddress toAddress = new MailAddress(toMailArr[i]);
                //添加收件人邮箱
                mailMessage.To.Add(new MailAddress(toMailArr[i]));
            }
            mailMessage.From = fromAddress;
            //mailMessage.To.
            //MailMessage mailMessage = new MailMessage(fromAddress, addressesArr);
            mailMessage.Subject = subj;//主题
            mailMessage.Body = bodys;//内容
            mailMessage.BodyEncoding = Encoding.Default;//正文编码
            mailMessage.IsBodyHtml = true;//设置为HTML格式
            mailMessage.Priority = MailPriority.Normal;//优先级
            await smtpClient.SendMailAsync(mailMessage);
        }

    }
}