C # mail sending-sendmail

Last Update:2018-12-07 Source: Internet

Author: User

Tags mailmessage

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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 = "";
}
}

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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