C# 调用Outlook发送邮件

添加引用：Microsoft.Office.Interop.Outlook

 1 public class EmailHelper
 2 {
 3     /// <summary>
 4     /// 收件人，多个收件人用分号";"隔开
 5     /// </summary>
 6     public string MailTo { get; set; }
 7 
 8     /// <summary>
 9     /// 抄送，多个收件人用分号";"隔开
10     /// </summary>
11     public string MailCC { get; set; }
12 
13     /// <summary>
14     /// 密送，多个收件人用分号";"隔开
15     /// </summary>
16     public string MailBCC { get; set; }
17 
18     /// <summary>
19     /// 主题
20     /// </summary>
21     public string MailSubject { get; set; }
22 
23     /// <summary>
24     /// 内容
25     /// </summary>
26     public string MailHTMLBody { get; set; }
27 
28     /// <summary>
29     /// 多个附加用分号";"隔开
30     /// </summary>
31     public string MailAttachments { get; set; }
32 
33     public bool Send()
34     {
35         try
36         {
37             Outlook.Application olApp = new Outlook.Application();
38             Outlook.MailItem mailItem = (Outlook.MailItem)olApp.CreateItem(Outlook.OlItemType.olMailItem);
39             mailItem.To = MailTo;
40             mailItem.CC = MailCC;
41             mailItem.BCC = MailBCC;
42             mailItem.Subject = MailSubject;
43             mailItem.BodyFormat = Outlook.OlBodyFormat.olFormatHTML;//内容格式
44             mailItem.HTMLBody = MailHTMLBody;
45             foreach (var item in MailAttachments.Split(';'))
46             {
47                 mailItem.Attachments.Add(item);
48             }
49             mailItem.Send();
50             mailItem = null;
51             olApp = null;
52             return true;
53         }
54         catch (System.Exception ex)
55         {
56             return false;
57         }
58     }
59 }

在使用前需要先在本地的Outlook上配置发送人的用户信息。

Microsoft.Office.Interop.Outlook 官网文档：https://docs.microsoft.com/en-us/dotnet/api/microsoft.office.interop.outlook?view=outlook-pia