C# Winform 郵件發送類

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郵件發送類：

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net;

/// <summary>
/// sendmail 的摘要說明
/// </summary>
namespace donny
{
    public struct EmailParms
    {
        /// <summary>
        /// 收件人郵箱地址
        /// </summary>
        public string ToEmailAddress;

        /// <summary>
        /// 發件人郵箱地址
        /// </summary>
        public string FromEmailAddress;

        /// <summary>
        /// 發件人郵箱密碼
        /// </summary>
        public string FromEmailPassword;

        /// <summary>
        /// 郵件主題
        /// </summary>
        public string EmailSubject;

        /// <summary>
        /// 郵件內容
        /// </summary>
        public string EmailBody;

        /// <summary>
        /// 發件人姓名
        /// </summary>
        public string EmailPersonName;

        /// <summary>
        /// SMTP主機名稱
        /// 例:Gmail爲smtp.gmail.com
        /// </summary>
        public string EmailHostName;

        /// <summary>
        /// 郵件優先級：high（高）、low(低)、normal(正常)
        /// 默認爲high
        /// </summary>
        public string EmailPriority;

        /// <summary>
        /// 郵箱端口號
        /// 例:Gmail爲587,通常爲25
        /// </summary>
        public int EmailPort;

        /// <summary>
        /// 郵件是否加密:true(加密),false(不加密)
        /// 默認爲true
        /// </summary>
        public bool isEnableSsl;

        /// <summary>
        /// 郵件內容是否爲HTML格式(true加密,false不加密),默認爲false
        /// </summary>
        public bool isBodyHtml;

        /// <summary>
        /// 郵件編碼類型:UTF七、UTF8(推薦)、UTF3二、ASCII和Default.
        /// </summary>
        public string EncodingType;
    }
    public class sendmail
    {
        public sendmail()
        {
            //
            // TODO: 在此處添加構造函數邏輯
            //
        }
        public static bool SendingEmail(EmailParms Email)
        {
            
            System.Net.Mail.MailMessage mms = new System.Net.Mail.MailMessage();

            System.Text.Encoding emaiEncodingType;
            //設置郵件編碼類型
            switch (Email.EncodingType)
            {
                case "UTF7":
                    emaiEncodingType = System.Text.Encoding.UTF7;
                    break;
                case "UTF8":
                    emaiEncodingType = System.Text.Encoding.UTF8;
                    break;
                case "UTF32":
                    emaiEncodingType = System.Text.Encoding.UTF32;
                    break;
                case "ASCII":
                    emaiEncodingType = System.Text.Encoding.ASCII;
                    break;
                default:
                    emaiEncodingType = System.Text.Encoding.Default;
                    break;
            }

            mms.To.Add(Email.ToEmailAddress);
            mms.From = new System.Net.Mail.MailAddress(Email.FromEmailAddress, Email.EmailPersonName, emaiEncodingType);
            mms.Subject = Email.EmailSubject;
            mms.SubjectEncoding = emaiEncodingType;
            mms.Body = Email.EmailBody;
            mms.BodyEncoding = emaiEncodingType;

            //設置郵件是否爲HTML格式
            if (Email.isBodyHtml == false)
            {
                mms.IsBodyHtml = Email.isBodyHtml;
            }
            else
            {
                mms.IsBodyHtml = true;
            }

            //設置郵件優級先級
            switch (Email.EmailPriority)
            {
                case "normal":
                    mms.Priority = System.Net.Mail.MailPriority.Normal;
                    break;
                case "low":
                    mms.Priority = System.Net.Mail.MailPriority.Low;
                    break;
                default:
                    mms.Priority = System.Net.Mail.MailPriority.High;
                    break;
            }

            System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient();
            client.Credentials = new System.Net.NetworkCredential(Email.FromEmailAddress, Email.FromEmailPassword);

            client.Port = Email.EmailPort;
            client.Host = Email.EmailHostName;
            client.EnableSsl = Email.isEnableSsl;

            try
            {
                client.Send(mms);
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }
    }
}
 

使用方法：

 

        EmailParms mailstr = new EmailParms();
        mailstr.EmailBody = "aaaa";
        mailstr.EmailHostName = "smtp.XXXX.com";
        mailstr.EmailPersonName = "admin";
        mailstr.EmailPort = 25;
        mailstr.EmailPriority = "high";
        mailstr.EmailSubject = "主題";
        mailstr.EncodingType = "UTF8";
        mailstr.FromEmailAddress = "a@a.com";
        mailstr.FromEmailPassword = "1111111";
        mailstr.isBodyHtml = false;
        mailstr.isEnableSsl = false;
        mailstr.ToEmailAddress = "b@b.com";
        sendmail.SendingEmail(mailstr);
 

使用時候注意：

有時候防火牆會攔截郵件。須要在防火牆裏設置端口開放，用那個就開發那個。不要頻繁大範圍的發送郵件，負責機房很快就會把你服務器的相關端口給封閉的。

 

本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/Donny_zhang/archive/2009/01/13/3769454.aspx