c# 使用Codosys.dll(CDO)发送邮件

准备工作:

从C:\Windows\System32将Codosys.dll拷到你的项目里,然后引用,或者直接引用Com组件也可以

然后看代码

 ///<summary>
/// 构造函数
///</summary>
///<param name="strserver">发件箱的邮件服务器地址</param>
///<param name="strtoMail">收件人地址(可以是多个收件人,程序中是以“;"进行区分的)</param>
///<param name="strfromMail">发件人地址</param>
///<param name="strsubject">邮件标题</param>
///<param name="stremailBody">邮件内容(可以以html格式进行设计)</param>
///<param name="strpassword">发件人邮箱密码</param>
///<param name="intport">发送邮件所用的端口号(htmp协议默认为25)</param>
///<param name="blnsslEnable">true表示对邮件内容进行socket层加密传输,false表示不加密</param>
/// <param name="strCC">抄送人</param>
/// <param name="files">附件</param>
public static void SendMyEmailByCDO(string strserver,
string strtoMail,
string strfromMail,
string strsubject,
string stremailBody,
string strpassword,
int intport,
bool blnsslEnable, string strCC, List<string> files)
{
string yourEmail = strfromMail;
CDO.Message message = new CDO.Message();
CDO.IConfiguration configuration = message.Configuration;
ADODB.Fields fields = configuration.Fields; Console.WriteLine(String.Format("Configuring CDO settings...")); ADODB.Field field = fields["http://schemas.microsoft.com/cdo/configuration/smtpserver"];
field.Value = strserver; field = fields["http://schemas.microsoft.com/cdo/configuration/smtpserverport"];
field.Value = intport; field = fields["http://schemas.microsoft.com/cdo/configuration/sendusing"];
field.Value = CDO.CdoSendUsing.cdoSendUsingPort; field = fields["http://schemas.microsoft.com/cdo/configuration/smtpauthenticate"];
field.Value = CDO.CdoProtocolsAuthentication.cdoBasic; field = fields["http://schemas.microsoft.com/cdo/configuration/sendusername"];
field.Value = yourEmail; field = fields["http://schemas.microsoft.com/cdo/configuration/sendpassword"];
field.Value = strpassword; field = fields["http://schemas.microsoft.com/cdo/configuration/smtpusessl"];
field.Value = blnsslEnable.ToString().ToLower(); fields.Update(); Console.WriteLine(String.Format("Building CDO Message...")); message.From = yourEmail;
message.To = strtoMail;
message.Subject = strsubject; if (!string.IsNullOrEmpty(strCC))
{
message.CC = strCC;
} message.HTMLBody = stremailBody;
if (files != null)
{
foreach (string item in files)
{
message.AddAttachment(item);
}
} Console.WriteLine(String.Format("Attempting to connect to remote server...")); // Send message.
message.Send(); }

https://msdn.microsoft.com/en-us/library/ms526453(v=exchg.10).aspx

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