C#. NET instance code for sending mail

This article introduces C #. NET send the instance code of the mail, need friend can refer to, want to be helpful to you copy code code as follows:

using System;


using System.Collections.Generic;


using System.Text;


using System.Net.Mail;


using System.Net;


namespace Myquery.utils


{


///<summary>


///Encapsulation Mail handling


///by Jia Shiyi 2011-6-3


///</summary>


public static class Mailhelper


    {


private static string smtphost = null;


private static int smptport = 25;


private static bool Smtpisusercredentials = FALSE;


private static string smtpcredentialaccount = null;


private static string smtpcredentialpassword = null;


///<summary>


///settings Send message Parameters


///</summary>


///<param name= "host" >SMTP server address or name </param>


///<param name= "port" >SMTP service port is generally 25</param>


///<param name= "isusercredentials" > Need certification </param>


///<param name= "account" > Need to authenticate users </param>


<param name= "Password" > user's password </param>
when required for authentication

public static void Setparameters (string host, int port, bool isusercredentials, string account, String PASSW ORD)


        {


SMTPHost = host;


smptport = port;


smtpisusercredentials = isusercredentials;


smtpcredentialaccount = account;


Smtpcredentialpassword = password;


        }


<summary>


///set Send message parameter fetch configuration


///</summary>


private static void Setparameters ()


        {


if (String.IsNullOrEmpty (smtphost))


            {


SMTPHost = Webhelper.getappconfig ("SMTPHost");


Smptport = Datahelper.getintvalue (Webhelper.getappconfig ("Smptport"), 25);


Smtpisusercredentials = constants.true_id. Equals (Webhelper.getappconfig ("smtpisusercredentials"));


Smtpcredentialaccount = Webhelper.getappconfig ("Smtpcredentialaccount");


Smtpcredentialpassword = Webhelper.getappconfig ("Smtpcredentialpassword");


            }


        }


///<summary>


///Send mail send mail error does not throw an exception


///</summary>


<param name= "receivers" > Recipient </param>


///<param name= "title" > Title/Theme </param>


///<param name= "Content" > Letter Contents </param>


///<param name= "sender" > Sender empty Access system configuration </param>


public static void SendMail (string receivers, string title, string content, string sender)


        {


if (! String.IsNullOrEmpty (receivers))


            {


//Initialization Parameters


Setparameters ();


if (! String.IsNullOrEmpty (smtphost))


                {


Try


                    {


smtpclient smtp = new SmtpClient (SMTPHost, Smptport);


if (smtpisusercredentials)


                        {


SMTP. useDefaultCredentials = true;


SMTP. Credentials = new NetworkCredential (Smtpcredentialaccount, Smtpcredentialpassword);


                        }


Smtp. Deliverymethod = Smtpdeliverymethod.network;


if (String.IsNullOrEmpty (sender))


                        {


sender = Smtpcredentialaccount;


                        }


foreach (String receiver in datahelper.getstrings (receivers))


                        {


mailmessage msg = new MailMessage (sender, receiver, title, content);


Msg. bodyencoding = Encoding.UTF8;


Msg. subjectencoding = Encoding.UTF8;


Msg. Isbodyhtml = true;


SMTP. Send (msg);


Msg. Dispose ();


                        }


}


Catch {}


                }


            }


        }


    }


}