C # sends mail through an SMTP server Mailhelper

C # sends mail through an SMTP server MailHelper.cs

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;using system.io;using system.text;using System.Net.Mail;///<summary >///Mailhelper Summary description///</summary>public class mailhelper{public Mailhelper () {} public string add    Res_mail = Common.getconfig ("Mail", "mailconfig.xml");    public string addres_smtp = Common.getconfig ("SMTP", "Mailconfig.xml");    public string addres_mailpwd = Common.getconfig ("Mailpwd", "Mailconfig.xml"); Send mail public static bool SendEmail (string useremail, string subject, string content) {sendsms SMS = new Sen        DSms ();        BOOL BFG = false;  try {writelog ("c://log//smtp//", "Email:" + sms.addres_mail + "Send password:" + sms.addres_mailpwd + "Send SMTP:"            + SMS.ADDRES_SMTP + "Email:" + useremail + "\ r \ n");MailMessage msg = new MailMessage (); Msg.            Isbodyhtml = true; Msg.            from = new MailAddress (Sms.addres_mail, "cross-border portal-Password retrieval", encoding.getencoding ("Utf-8")); Msg.            To.add (UserEmail); Msg.            bodyencoding = encoding.getencoding ("Utf-8"); Msg.            subjectencoding = encoding.getencoding ("Utf-8"); Msg.            Subject = Subject; Msg.            Body = content;            Add Attachment string sfile = "Attachment address"; Mail.            Attachments.Add (New Attachment (sfile)); SmtpClient mail = new SmtpClient ();//Instance mail.     Host = SMS.ADDRES_SMTP; Send to host mail.            Port = 25; Mail.            useDefaultCredentials = true; Mail.            Credentials = new NetworkCredential (Sms.addres_mail, sms.addres_mailpwd); Mail.            Send (msg);        BFG = true; } catch (Exception ex) {Writelog ("c://log//error//", "error message message:" + ex. Message + "Source:" + ex. Source + "StackTrace:" + ex. StacktraCe + "\ r \ n");    } return BFG;    }///<summary>///write Log///</summary> public static void Writelog (string LogPath, String msg)            {try {string tofilefoder = LogPath; String Tofilefullpath = LogPath + "" + DateTime.Now.ToString ("yyyyMMdd") + ".            Log ";            DirectoryInfo di = new DirectoryInfo (Tofilefoder); if (!di. Exists) {di.            Create ();            } System.IO.StreamWriter SW = System.IO.File.AppendText (Tofilefullpath); Sw.            WriteLine (msg); Sw.        Close (); } Catch {}}}

C # sends mail through an SMTP server Mailhelper