diff --git a/BO/Content/emailForm/template_email_3.html b/BO/Content/emailForm/template_email_3.html
index 12511f3..066f976 100644
--- a/BO/Content/emailForm/template_email_3.html
+++ b/BO/Content/emailForm/template_email_3.html
@@ -14,7 +14,7 @@
     <div style="width:100%; max-width:900px; margin:0 auto; font-family: 'Noto Sans KR','Malgun Gothic', dotum, sans-serif;">
 
 
-        <div style="padding: 10px;box-sizing:border-box;border-bottom:2px solid #333583;color: #555;font-size: 24px;font-weight: 600;background: url('https://cnr.nptc.kr/img/common/gnb_logo.png')no-repeat left center;height: 80px;">
+        <div style="padding: 10px;box-sizing:border-box;border-bottom:2px solid #333583;color: #555;font-size: 24px;font-weight: 600;background: url('/css/img/intranet_logo_b.gif')no-repeat left center;height: 80px;">
             <span style="padding-left: 140px;vertical-align: -webkit-baseline-middle;"></span>
         </div>
 
diff --git a/BO/Web.config b/BO/Web.config
index 3768ba9..66525ac 100644
--- a/BO/Web.config
+++ b/BO/Web.config
@@ -33,7 +33,8 @@
       <add key="fronturl" value="https://www.ynicte.com" />
       <add key="adminurl" value="http://admin.ynicte.com" />
       <add key="isstaging" value="1" />
-      <add key="masteremail" value="edu@ynicte.or.kr;mail.ynicte.or.kr;25;ynicte@ynicte.or.kr;k7758870!%" />
+      <!--<add key="masteremail" value="edu@ynicte.or.kr;mail.ynicte.or.kr;25;ynicte@ynicte.or.kr;k7758870!%" />-->
+      <add key="masteremail" value="yicte@cte.or.kr;smtp.daum.net;465;yicte2020;yicte04003" />
       <add key="usessl" value="N" />
       <add key="daokey" value="ynictelms2020" />
 
diff --git a/Base/Controller/BasePartialController.cs b/Base/Controller/BasePartialController.cs
index 176d737..a231e3b 100644
--- a/Base/Controller/BasePartialController.cs
+++ b/Base/Controller/BasePartialController.cs
@@ -926,8 +926,8 @@ namespace NP.Base
                 mail.Body = Html.Replace("src=\"" + files.Files + "/Editor", "src=\"" + GetConfig("fronturl") + "/Files/Editor");
                 if (!string.IsNullOrEmpty(strFile))
                 {
-                    System.Net.Mail.Attachment attachment;//첨부파일 만들기
-                    attachment = new System.Net.Mail.Attachment(strFile);//첨부파일 붙이기
+                    System.Web.Mail.MailAttachment attachment;//첨부파일 만들기
+                    attachment = new System.Web.Mail.MailAttachment(strFile);//첨부파일 붙이기
                     mail.Attachments.Add(attachment);//첨부파일 붙이기
                 }
 
@@ -954,6 +954,7 @@ namespace NP.Base
             }
             return 1;
         }
+
         /// <summary>
         /// SendMailTemplate
         /// </summary>
@@ -966,6 +967,7 @@ namespace NP.Base
         /// <param name="fileName"></param>
         /// <param name="fileInputStream"></param>
         /// <returns></returns>
+        [Obsolete]
         public int SendMailTemplate(string templateType, string sdEmail, string sdName, string rcvEmail, string title, string[] contents, string fileName, string bans = "")
         {
             var smtp = GetConfig("masteremail").Split(';');
@@ -976,12 +978,11 @@ namespace NP.Base
 
             try
             {
-                System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();
-                mail.From = new System.Net.Mail.MailAddress(sdEmail, sdName, System.Text.Encoding.UTF8);
-                mail.To.Add(rcvEmail);
+                MailMessage mail = new MailMessage();
+                mail.From = sdEmail;
+                mail.To =rcvEmail;
                 mail.Subject = title;
-                mail.SubjectEncoding = System.Text.Encoding.UTF8;
-                mail.IsBodyHtml = true;
+                mail.BodyFormat = MailFormat.Html;
                 mail.Body = string.Empty;
                 mail.BodyEncoding = System.Text.Encoding.UTF8;
 
@@ -1005,16 +1006,24 @@ namespace NP.Base
                 mail.Body = template_emailText.Replace("src=\"" + files.Files + "/Editor", "src=\"" + GetConfig("fronturl") + "/Files/Editor");
                 if (!string.IsNullOrEmpty(fileName))
                 {
-                    System.Net.Mail.Attachment attachment;
-                    attachment = new System.Net.Mail.Attachment(fileName);
+                    System.Web.Mail.MailAttachment attachment;
+                    attachment = new System.Web.Mail.MailAttachment(fileName);
                     mail.Attachments.Add(attachment);
                 }
-                using (System.Net.Mail.SmtpClient SmtpServer = new System.Net.Mail.SmtpClient(smtphost, smtpport))
-                {
-                    SmtpServer.Credentials = new System.Net.NetworkCredential(smtpid, smtppw);
-                    //SmtpServer.EnableSsl = true;                    
-                    SmtpServer.Send(mail);
-                }
+                int cdoBasic = 1;
+                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpusessl", true);
+                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", smtpport);
+                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", cdoBasic);
+                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", smtpid);
+                mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", smtppw);
+                SmtpMail.SmtpServer = smtphost;
+                SmtpMail.Send(mail);
+                //using (System.Net.Mail.SmtpClient SmtpServer = new System.Net.Mail.SmtpClient(smtphost, smtpport))
+                //{
+                //    SmtpServer.Credentials = new System.Net.NetworkCredential(smtpid, smtppw);
+                //    //SmtpServer.EnableSsl = true;                    
+                //    SmtpServer.Send(mail);
+                //}
                 //SmtpServer.Host = smtphost;
                 //SmtpServer.Port = Convert.ToInt32(smtpport);
                 //SmtpServer.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
diff --git a/FO/Web.config b/FO/Web.config
index e4f1bb5..140d682 100644
--- a/FO/Web.config
+++ b/FO/Web.config
@@ -33,7 +33,8 @@
         <!--<add key="SIP" value="192.168.0.58" />-->
         <add key="fronturl" value="https://www.ynicte.com" />
         <add key="adminurl" value="http://admin.ynicte.com" />
-        <add key="masteremail" value="edu@ynicte.or.kr;mail.ynicte.or.kr;25;ynicte@ynicte.or.kr;k7758870!%" />
+        <!--<add key="masteremail" value="edu@ynicte.or.kr;mail.ynicte.or.kr;25;ynicte@ynicte.or.kr;k7758870!%" />-->
+        <add key="masteremail" value="yicte@cte.or.kr;smtp.daum.net;465;yicte2020;yicte04003" />
         <add key="usessl" value="N" />
         <add key="ssonoauth" value="Y" />
         <add key="daokey" value="ynictelms2020" />