.NET CORE 下收发邮件之 MAILKIT
2024-09-08 19:19:08
背景
利用代码发送邮件在工作中还是比较常见的,相信大家都用过SmtpClient
来处理发送邮件的操作,不过这个类以及被标记已过时,所以介绍一个微软推荐的库MailKit
来处理。
MailKit
开源地址:https://github.com/jstedfast/MailKit
需要邮件功能
1、服务提供方:需提供邮件收发客户端或Web服务。如:QQ邮箱、GMail邮箱、126、163等知名邮件服务提供商。注:如果你使用的第三方不知名邮件服务商提供的邮件收发服务,通过其发出的邮件,可能会被其他知名邮件服务提供商的STMP服务器视为是"恶意邮件或垃圾邮件"!
2、消息推送:消息推送方
3、App:某些网站会员的注册功能或者功能激活功能。
协议
1、SMTP(Simple Mail Transfer Protocol) ---简单邮件传输协议
2、POP3(Post Office Protocol -Version3) ---邮局协议第三个版本
代码实现
1、新建项目 引用 MailKit
using MailKit.Net.Smtp;using MimeKit;
2、指定发件人、收件人、附件等信息
[HttpPost]
[Route("sendmail")]
public bool Sendmail(SendmailDto model)
{
string mailTo = model.mail;
string title = model.title;
string requestId = Guid.NewGuid().ToString("N");
string path = WriteFilepath(requestId, title + ".html", model.str);
string docpath = path.Replace(".html", ".docx");
try
{
string applicationRoot = AppContext.BaseDirectory;
var provider = new PhysicalFileProvider(applicationRoot);
string apath = @"C:/www/fengnan";
// string apath = @"C:/net6.0";
var filePath =
//applicationRoot +
apath + $"/Template/fldoc/" + requestId + "/";
var filePath2 =
//applicationRoot +
apath + $"/Template/fldoc/" + requestId + "/"
+ title + ".html";
ecmd("soffice --headless --convert-to docx:\"Office Open XML Text\" " + filePath2 + " --outdir " + filePath);
// string docpath = path.Replace(".html", ".docx");
}
catch (Exception ex)
{
_logger.Error(ex);
}
// string mailFrom = "xxxx@qq.com";
string mailFrom = "xxx@xx.net";
// mailTo = "xx@xxx.com";
string Text = "内容见附件,请查收<br/> 感谢";
////string mailFromAccount = "xxx@qq.com";
////string mailPassword = "xxxx";
string mailFromAccount = "xxx@xx.net";
string mailPassword = "xxxx@";
var contentRoot = Directory.GetCurrentDirectory();
var webRoot = Path.Combine(contentRoot, "wwwroot");
/// string path = Path.Combine(webRoot, "Images/icc.png");
// string path = @"D:\xxxx知.html";
// string Text = @"Hey Chandler,
//I just wanted to let you know that Monica and I were going to go play some paintball, you in?
//-- Joey";
Config eConfig = new Config
{ From = new MailAddress("xxxx", mailFrom),
// Host = "smtp.qq.com", Host = "smtp.exmail.qq.com", MailFromAccount = mailFromAccount, MailPassword = mailPassword,
// Port = 587, Port = 465, UseSsl = true, IsHtml = true
};
List<MailAddress> tos = new List<MailAddress>();
tos.Add(new MailAddress("", mailTo));
List<string> flist = new List<string>();
if (System.IO.File.Exists(docpath))
{
flist.Add(docpath);
//docpath
}
else
{
flist.Add(path);
}
Mailhelper.SendEmail(eConfig, tos, title, Text, flist.ToArray());
return true;
}
3、发邮件帮助类
using MimeKit;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Threading.Tasks;
namespace DFTech.Service.Filters
{
/// <summary>
/// 发邮件
/// </summary>
public class Mailhelper
{
/// <summary>
/// 发邮件
/// </summary>
/// <param name="config"></param>
/// <param name="tos"></param>
/// <param name="subject"></param>
/// <param name="message"></param>
/// <param name="attachments"></param>
/// <returns></returns>
public static void SendEmail(Config config, List<MailAddress> tos, string subject, string message, params string[] attachments)
{
var emailMessage = new MimeMessage();
emailMessage.From.Add((MailboxAddress)config.From);
foreach (var to in tos)
emailMessage.To.Add(to as MailAddress);
emailMessage.Subject = subject;
var alternative = new Multipart("alternative");
if (config.IsHtml)
alternative.Add(new TextPart("html") { Text = message });
else
alternative.Add(new TextPart("plain") { Text = message });
if (attachments != null)
{
foreach (string f in attachments)
{
var attachment = new MimePart()//("image", "png")
{
ContentObject = new ContentObject(File.OpenRead(f), ContentEncoding.Default),
ContentDisposition = new ContentDisposition(ContentDisposition.Attachment),
ContentTransferEncoding = ContentEncoding.Base64,
FileName = Path.GetFileName(f)
};
alternative.Add(attachment);
}
}
emailMessage.Body = alternative;
using (var client = new SmtpClient())
{
client.Connect(config.Host, config.Port, config.UseSsl);// SecureSocketOptions.None
client.AuthenticationMechanisms.Remove("XOAUTH2");
client.Authenticate(config.MailFromAccount, config.MailPassword);
client.Send(emailMessage);
client.Disconnect(true);
}
}
}
public class Config
{
public int Port { get; set; } = 25; //25
public string Host { get; set; } //smtp.hantianwei.cn
public bool IsHtml { get; set; } = true;
public bool UseSsl { get; set; } = false;
public string MailFromAccount { get; set; }//mail@hantianwei.cn
public string MailPassword { get; set; }
public MailAddress From { get; set; }
}
/// <summary>
///
/// </summary>
public class MailAddress : MailboxAddress
{
public MailAddress(string name, string address) : base(name, address)
{
}
public MailAddress(Encoding encoding, string name, string address) : base(encoding, name, address)
{
}
}
}
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