C # mail sending-sendmail

Source: Internet
Author: User
Tags mailmessage
Sendmail. aspx

<% @ Page Language = "C #" autoeventwireup = "true" codefile = "sendmail. aspx. cs" inherits = "admin_sendmail" %>

<! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<HTML xmlns = "http://www.w3.org/1999/xhtml">
<Head id = "head1" runat = "server">
<Title> sendmail </title>
</Head>
<Body>
<Form ID = "form1" runat = "server">
<Table border = "0" align = "center" cellpadding = "0" cellspacing = "5">

<Tr>
<TD width = "100"> recipient: </TD>
<TD width = "600"> <asp: textbox id = "addressee" runat = "server" width = "600"> </ASP: textbox>
<Asp: requiredfieldvalidator id = "requiredfieldvalidator1" runat = "server" errormessage = "addressee can't be empty! "Controltovalidate =" subject "font-bold =" true"
Display = "dynamic" forecolor = "black"> </ASP: requiredfieldvalidator>
<Asp: regularexpressionvalidator id = "re" runat = "server" errormessage = "The format inaccuracy of email! "Controltovalidate =" addressee "font-bold =" true"
Validationexpression = "\ W + ([-+.] \ W +) * @ \ W + ([-.] \ W + )*\. \ W + ([-.] \ W +) * "forecolor =" black "> </ASP: regularexpressionvalidator> </TD>
</Tr>
<Tr>
<TD> CC: </TD>
<TD> <asp: textbox id = "copy" runat = "server" width = "600"> </ASP: textbox> </TD>
</Tr>
<Tr>
<TD> BCC: </TD>
<TD> <asp: textbox id = "secret" runat = "server" width = "600"> </ASP: textbox> </TD>
</Tr>
<Tr>
<TD> topic: </TD>
<TD> <asp: textbox id = "subject" runat = "server" width = "600"> </ASP: textbox>
<Asp: requiredfieldvalidator id = "Ru" runat = "server" errormessage = "subject can't be empty! "Controltovalidate =" subject "font-bold =" true"
Display = "dynamic" forecolor = "black"> </ASP: requiredfieldvalidator> </TD>
</Tr>
<Tr>
<TD> attachment: </TD>
<TD> <asp: textbox id = "attachment" runat = "server" width = "600"> </ASP: textbox> </TD>
</Tr>
<Tr>
<TD> body: </TD>
<TD> <asp: textbox id = "body" runat = "server" textmode = "multiline" rows = "18" width = "600"> </ASP: textbox> </TD>
</Tr>
<Tr>
<TD colspan = "2" align = "center">
<Asp: button id = "send" runat = "server" text = "send" onclick = "sendmailusegmail"/> & nbsp; & nbsp;
<Asp: button id = "refurbish" runat = "server" text = "refurbish" onclick = "refurbish_click"> </ASP: button> </TD>
</Tr>
</Table>
</Form>
</Body>
</Html>


 

Sendmail. aspx. CS

Using system;
Using system. Data;
Using system. configuration;
Using system. collections;
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. Web. Mail; // CoreCodeStart
Using system. Windows. forms;

// No debugging is available below

Public partial class admin_sendmail: system. Web. UI. Page
{
Protected void page_load (Object sender, eventargs E)
{

}

Public bool addrecipient (string Str) // CC recipient
{
STR = Str. Trim ();
If (STR = NULL | STR = "" | Str. indexof ("@") =-1)
Return true;
If (recipientnum <10)
{
Recipient. Add (recipientnum, STR );
Recipientnum ++;
Return true;
}
Else
{
Errmsg + = "too many recipients ";
Return false;
}
}


Public bool addrecipientbcc (string Str) // BCC recipient
{
If (STR = NULL | Str. Trim () = "")
Return true;
If (recipientbccnum <10)
{
Recipientbcc. Add (recipientbccnum, STR );
Recipientbccnum ++;
Return true;
}
Else
{
Errmsg + = "too many recipients ";
Return false;
}
}

Public void sendmailusegmail (Object sender, eventargs E)
{
Mailmessage objmailmessage;
Mailattachment objmailattachment;

// Create an email message
Objmailmessage = new mailmessage ();

// Sender email
Objmailmessage. From = "ujtrading@ujtrading.com"; // source email address

// Recipient email
String addressee = This. addressee. text;
Objmailmessage. To = addressee; // target email address
// Objmailmessage. To = "shirley@ujtrading.com ";

// Email Subject
String subject = This. Subject. text;
Objmailmessage. Subject = subject; // the title of the sent Email
// Objmailmessage. Subject = "test ";

// Email content
String body = This. Body. text;
Objmailmessage. Body = body; // content of the sent Email

// Create an attachment object
String attachment = This. Attachment. text;
If (this. Attachment. Text. tostring ()! = "")
{
Objmailattachment = new mailattachment (Attachment); // The Attachment C: \ test.txt
Objmailmessage. attachments. Add (objmailattachment); // attaches the attachment to the mail message object.
}

// Use SMTP to send emails. You must use Microsoft. NET Framework SDK V1.1 and later versions.
// Basic Permissions
Objmailmessage. Fields. Add ("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1 ");
// User Name
Objmailmessage. Fields. Add ("http://schemas.microsoft.com/cdo/configuration/sendusername", "ujtrading ");
// Password
Objmailmessage. Fields. Add ("http://schemas.microsoft.com/cdo/configuration/sendpassword", "789456 ");
// If the preceding three lines of code are not available, the following error message is displayed: the server rejects one or more recipient addresses. Server Response: 554: client host rejected: Access Denied
// SMTP address
Smtpmail. smtpserver = "smtp.ujtrading.com ";
// Start sending emails

Try
{
Smtpmail. Send (objmailmessage );
// You can simply use client. Send (MSG );
MessageBox. Show ("send mail success! "," Messige ");
This. addressee. Text = "";
}
Catch (system. net. Mail. smtpexception ex)
{
MessageBox. Show (ex. message, "Send mail fail! ");
}
// The core code ends.
}
Protected void refurbish_click (Object sender, eventargs E)
{
This. addressee. Text = "";
This. Subject. Text = "";
This. Body. Text = "";
This. Attachment. Text = "";
}
}

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