c#使用SMTPClient发送邮箱

一：问题在于？
1：163邮箱，qq邮箱默认未开通第三方邮箱，需要自己去开通
2：开通之后会获得授权码，不可以使用原来的密码，密码改为授权码
二：解决方法
1：在qq邮箱的设置中找到如图，开启smpt服务
2：设置usedefaultcredentials 为false ，创建，smtpclient.credentials = new networkcredential(emailsetting.username, password（这里是授权码）);
三：代码如下
public class emailsettings
{
public string mailtoaddress = “7126252@qq.com”;
public string mailfromaddress = “9067447@qq.com”;
public bool usessl = true;
public string username = “9067447@qq.com”;
public string password = “zdyzwmlndsdsdsad”; //要使用qq的 或者163邮箱的授权码
public string servername = “smtp.qq.com”;
public int serverport = 25;
public bool writeasfile = false; //这里要false
public string filelocation = “”;
}
public class emailorderprocess:iorderprocess
{
private emailsettings emailsetting;
public emailorderprocess(emailsettings setting)
{
emailsetting = setting;
}
public void processorder(cart cart,shoppingdetials shoppingdetials)
{
using(var smtpclient=new smtpclient())
{
smtpclient.enablessl = emailsetting.usessl;
smtpclient.host = emailsetting.servername;//smtp.qq.com
smtpclient.port = emailsetting.serverport;
smtpclient.usedefaultcredentials = false;
smtpclient.credentials = new networkcredential(emailsetting.username, emailsetting.password);
if (emailsetting.writeasfile) { }
stringbuilder body = new stringbuilder().append(“a new order has been submitted”);
var mailmessage = new mailmessage(emailsetting.mailfromaddress, emailsetting.mailtoaddress, “a new order”, body.tostring());
smtpclient.send(mailmessage);
}
}
}
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