C# 发送邮件
1.安装 NuGet 包
2.代码如下
SendMailUtil
using MimeKit;
using Srm.CMER.Application.Contracts.CmerInfo;namespace Srm.Mail
{
public class SendMailUtil
{
public async static Task<string> SendEmail(SendEmialDto sendEmialDto,List<string> tolist, List<string> cclist, BodyBuilder builder, string title, CancellationToken cancellationToken)
{// MimeMessage可以堪称MailKit里的一个邮件对象
var sendMessage = new MimeMessage();sendMessage.Subject = title;
// 也可以添加多个发件人，二选其一
// sendMessage.From.Add(new MailboxAddress(data.Name, data.Address));
// sendMessage.From.Add(new MailboxAddress("2799788752", "2799788752@qq.com"));
sendMessage.From.Add(new MailboxAddress(sendEmialDto.UserName, sendEmialDto.Eamil));
// 添加收件人信息
string mailtos = string.Empty;
foreach (var it in tolist)
{
if (!it.IsNullOrEmpty())
{
if (mailtos.IsNullOrEmpty())
{
mailtos = it + ";";
}
else
{
mailtos += it + ";";
}
sendMessage.To.Add(new MailboxAddress(it, it));
}
}// 添加抄送（CC）人信息
string mailccs = string.Empty;
foreach (var it in cclist)
{
if (!it.IsNullOrEmpty())
{
if (mailccs.IsNullOrEmpty())
{
mailccs = it + ";";
}
else
{
mailccs += it + ";";
}
if (it.Contains(";"))
{
string[] emial = it.Split(';');
foreach (string s in emial)
{
sendMessage.Cc.Add(new MailboxAddress(s, s));
}
}
else
{
sendMessage.Cc.Add(new MailboxAddress(it, it));
}}
}
//sendMessage.Cc.Add(new MailboxAddress("gyn", "gaoyanan@jshzxx.com"));// 邮件正文两种形式
// 1. 不带附件
// html
sendMessage.Body= builder.ToMessageBody();
//sendMessage.Body = new TextPart(TextFormat.Html) { Text = builder.HtmlBody };
// 或者纯文本
// sendMessage.Body = new TextPart(TextFormat.Plain) { Text = context };// 2. 带附件
/*var builder = new BodyBuilder();
builder.TextBody = "邮件正文文字描述";
// 添加附件，需带完整路径或者相对路径
builder.Attachments.Add("test.xlsx");
sendMessage.Body = builder.ToMessageBody();*/using (var smtp = new MailKit.Net.Smtp.SmtpClient())
{
try
{
// 1. 注册邮件发送成功之后的事件，比如记录log
// MessageSent事件里可以通过args参数，获得服务器的响应信息，以便于记录Log。
smtp.MessageSent += (sender, args) => {
// args.Response;};
smtp.ServerCertificateValidationCallback = (s, c, h, e) => true;
// 2. 连接服务器
//if (sendEmialDto.AccountName == "forehopetcs@forehope-elec.com")
//{
await smtp.ConnectAsync("smtp.exmail.qq.com", 465, true, cancellationToken);
//}
//else
//{
// await smtp.ConnectAsync("smtp.qq.com", 465, true, cancellationToken);
//}
// 3. 验证账号
// await smtp.AuthenticateAsync(data.UserName, data.MailPassword, cancellationToken);// await smtp.AuthenticateAsync("2799788752", "qrjozanttznpdeei", cancellationToken);
await smtp.AuthenticateAsync(sendEmialDto.AccountName, sendEmialDto.AuthCode, cancellationToken);
// 4. 发送邮件
var success = await smtp.SendAsync(sendMessage, cancellationToken);
// 5. 释放链接
await smtp.DisconnectAsync(true, cancellationToken);return success;
}
catch (Exception e)
{
return e.Message;
}
}
}
}
}
SendEmialDto
namespace Srm.CMER.Application.Contracts.CmerInfo
{
public class SendEmialDto
{
//账号名
public string? AccountName { get; set; }
public string? Eamil { get; set; }
//授权码
public string? AuthCode { get; set; }
//用户名
public string? UserName { get; set; }}
}
示例
SendEmailCommand
using System;
using System.Data;
using AutoMapper;
using MediatR;
using Microsoft.Extensions.Configuration;
using MimeKit;
using Srm.CMER.Application.Contracts.CmerInfo;
using Srm.COC.Application.Contracts.SpecApprove;
using Srm.Config;
using Srm.Core.Application.Commands;
using Srm.Core;
using Srm.Mail;
using Srm.Autofac;
using Srm.COC.Application.Contracts.Spec;namespace Srm.Audit.Application.AuditFindings.Commands
{
public class SendEmailCommand : IRequest<bool>
{
public string SupplierName { get; }public SendEmailCommand(string supplierName)
{
this.SupplierName = supplierName;
}
}
public class SendEmailCommandHandler : CommandRequestHandler<SendEmailCommand, bool>
{
public SendEmailCommandHandler(IMediator mediator, IMapper mapper, IDbContext dbContext) : base(mediator, mapper, dbContext)
{
}public override async Task<bool> HandleAsync(SendEmailCommand request, IDbConnection dbConnection, CancellationToken cancellationToken)
{
string module = "供应商稽核";
//收件人
var tolist = new List<string>();SendEmialDto sendEmailDto = new SendEmialDto();
sendEmailDto.AuthCode = "Foref7!00HopeTCS";
sendEmailDto.AccountName = "forehopetcs@forehope-elec.com";
sendEmailDto.Eamil = "forehopetcs@forehope-elec.com";
sendEmailDto.UserName = "供应商管理系统(甬矽电子)";IConfiguration confing = SrmConfig.GetConfig();
IConfigurationSection HttpUrlSection = confing.GetSection("GradeURL");
string httpUrl = HttpUrlSection["HTTPURL"];var builder = new BodyBuilder();
builder.TextBody += request.SupplierName+ " ，请登录供应商系统（"+httpUrl+"）完成FINDINGS的填写，系统邮件无需回复，谢谢。";
var SpecApproveQueryService = ServiceLocator.GetService<ISpecApproveQueryService>();
var SpecQueryService = ServiceLocator.GetService<ISpecQueryService>();
List<string> sqeemail = await SpecQueryService.GetSqeEmailsByModule(request.SupplierName,module, cancellationToken);
List<string> SupplierEmails = await SpecApproveQueryService.GetSupEmailbyModule(request.SupplierName, module, cancellationToken);
List<string> supccemail=await SpecApproveQueryService.GetSupccemail(request.SupplierName,module, cancellationToken);
// 邮箱
tolist.AddRange(SupplierEmails);
var cclist=new List<string>();
if (supccemail.Count > 0)
{
cclist.AddRange(supccemail);
}
if (sqeemail.Count < 1)
{
List<string> sqeemailTotal = await SpecQueryService.GetSqeEmails(cancellationToken);
sqeemail.AddRange(sqeemailTotal);
}
cclist.AddRange(sqeemail);
await SendMailUtil.SendEmail(sendEmailDto, tolist,cclist, builder, "FINDINGS提醒", cancellationToken);
return true;
}}
}