static void EMailTest()
{
var domain = "test.localhost";
var selector = "op";
//DKIM签名私钥
var rsa = new RSA.RSA(@"
-----BEGIN RSA PRIVATE KEY-----
MIIBOwIBAAJBALYyNggDBZ2SjrnZsOolGW1UWjf5Mt6P3zmitHctuOv8TvkdAAnH
knzM8soIWXFUjQ3yTSweJ54hvX2UmDpjEe0CAwEAAQJAM7vkLbg18v03e7w9iO7J
3opyJ6yh7iJqHyJ9Hc4k0RTT69q+rTWky2NNOQjDIb7dFiN8soXSttkgxJWHpvS1
XQIhANphUALecb2vyi9fVtZsLf+IPHQQSxmaRwpszmXqvD/jAiEA1ZUp/cLuPhvL
aVGoAOpMI3+tTrAS+rD4ynS9m+pQb+8CIQDWGgQ029wNyhRi/4kGrocmeW4zqGnI
zy4JNYXh/BLWWwIgMnLhUEdS7uixy1a2UEEHavslfIiqcvyKR4f7oXBfP5ECIQDK
B4JqZMGSBWkvkoGZOoTEr5UF7/EUeZIjux3wm2wYXA==
-----END RSA PRIVATE KEY-----
", true);
Console.WriteLine("【DKIM测试公钥512位（PEM）】：");
Console.WriteLine(rsa.ToPEM_PKCS1(true));
Console.WriteLine();
var dkim = new EMail_DKIM(domain, selector, rsa);
Action <Action <EMail> > create = (call) => {
//投递邮件给qq服务器
using (var email = new EMail()) { //new EMail("mx1.qq.com", 25)，默认会自动解析收件箱的mx记录，得到smtp服务器地址，如果是要通过发件服务器来发送，则需要手动填写为发件服务器地址
//使用签名
email.TryUseDKIM(dkim);
email.FromEmail = "test@" + domain;
email.ToEmail("*****@*****.**"); //改成有效的邮箱地址
//添加附件
email.AddAttachment("abc文本内容123", "文本.txt");
email.AddAttachment("未命名文件内容，红红火火恍恍惚惚", "");
call(email);
}
};
create((email) => {
//发送邮件出去，去垃圾箱找，如果私钥是域名设置的话正常点
var res = email.Send("标题", "内容");
Console.WriteLine("【邮件发送】");
Console.WriteLine(res.IsError ? "失败：" + res.ErrorMessage : "成功");
Console.WriteLine();
});
create((email) => {
int len;
var msg = email.BuildMessage("标题", "内容", out len).Value;
//手动签名
dkim.Sign(msg);
//获取邮件内容
var raw = EMail_DKIM_MailMessageText.ToRAW(msg);
if (raw.IsError)
{
Console.WriteLine("获取邮件内容出错：" + raw.ErrorMessage);
return;
}
Console.WriteLine("【验证签名】");
Console.WriteLine(dkim.Verify(raw.Value) ? "合法" : "非法");
Console.WriteLine();
Console.WriteLine("【邮件(.eml)内容】");
Console.WriteLine(raw.Value.Raw);
});
create((email) => {
//设置发送到文件夹内，保存邮件，不投递
var dir = "d:/.email测试保存邮件文件夹";
Directory.CreateDirectory(dir);
email.OnSendBefore = (msg, smtp) => {
smtp.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory;
smtp.PickupDirectoryLocation = dir;
return(true);
};
var res = email.Send("标题", "内容");
Console.WriteLine("【另类保存】");
Console.WriteLine("目录：" + dir);
Console.WriteLine("结果：" + (res.IsError ? "失败，" + res.ErrorMessage : "已保存"));
});
}
/// <summary>
/// 发送邮件
/// </summary>
public Result Send(string title, string content, bool isHtml = true)
{
var rtv = new Result();
if (String.IsNullOrEmpty(SmtpHost))
{
rtv.error("必须提供发送邮件的smtp地址");
return(rtv);
}
if (_ToEmails.Count == 0)
{
rtv.error("需要设置发送到的邮件地址");
return(rtv);
}
MailMessage msg = null;
var smtp = new SmtpClient();
//SmtpConnection Hello 乱发名字
try {
var attr = smtp.GetType().GetField("clientDomain", Monitor.AllFlag);
attr.SetValue(smtp, ClientName);
} catch (Exception e) {
rtv.fail("无法设置客户端名称：" + e.Message, e.ToString());
return(rtv);
}
try {
int dataLen;
var msgRes = BuildMessage(title, content, out dataLen, isHtml);
if (msgRes.IsError)
{
msgRes.errorTo(rtv);
return(rtv);
}
msg = msgRes.Value;
var timeout = TimeoutMillisecond;
if (timeout == defaultTimeout)
{
//重新计算超时时间
timeout = Math.Max((dataLen / (50 * 1024)) * 1000, defaultTimeout);
}
while (_DKIM != null)
{
if (dataLen > DKIM_MaxLen)
{
break;
}
var res = _DKIM.Sign(msg);
if (res.IsError)
{
res.errorTo(rtv);
return(rtv);
}
break;
}
smtp.Host = SmtpHost;
smtp.Port = SmtpPort;
smtp.EnableSsl = SmtpSSL;
if (!String.IsNullOrEmpty(User))
{
smtp.Credentials = new NetworkCredential(User, Password);
}
smtp.Timeout = timeout;
if (OnSendBefore != null)
{
if (!OnSendBefore(smtp))
{
rtv.error("邮件发送前被取消");
return(rtv);
}
}
var task = smtp.SendMailAsync(msg);
var isout = !task.Wait(timeout);
if (isout || task.Exception != null)
{
smtp.SendAsyncCancel();
if (isout)
{
rtv.error("邮件发送超时");
return(rtv);
}
throw task.Exception;
}
return(rtv);
} catch (AggregateException ex) {
var e = ex.InnerException;
rtv.fail("邮件发送出错：" + e.Message, e.ToString());
return(rtv);
} catch (Exception e) {
rtv.fail("邮件发送异常：" + e.Message, e.ToString());
return(rtv);
} finally {
if (msg != null)
{
msg.Dispose();
}
if (smtp != null)
{
smtp.Dispose();
}
}
}
/// <summary>
/// 发送邮件
/// </summary>
public Result Send(string title, string content, bool isHtml = true)
{
var rtv = new Result();
if (_ToEmails.Count == 0)
{
rtv.error("需要设置发送到的邮件地址");
return(rtv);
}
if (String.IsNullOrEmpty(SmtpHost) && _ToEmails.Count != 1)
{
rtv.error("不提供smtp地址时只能提供一个收件地址");
return(rtv);
}
MailMessage msg = null;
var smtp = new SmtpClient();
//SmtpConnection Hello 乱发名字
try {
var attr = smtp.GetType().GetField("clientDomain", Monitor.AllFlag);
attr.SetValue(smtp, ClientName);
} catch (Exception e) {
rtv.fail("无法设置客户端名称：" + e.Message, e.ToString());
return(rtv);
}
try {
int dataLen;
var msgRes = BuildMessage(title, content, out dataLen, isHtml);
if (msgRes.IsError)
{
msgRes.errorTo(rtv);
return(rtv);
}
msg = msgRes.Value;
var timeout = TimeoutMillisecond;
if (timeout == defaultTimeout)
{
//重新计算超时时间
timeout = Math.Max((dataLen / (50 * 1024)) * 1000, defaultTimeout);
}
while (_DKIM != null)
{
if (dataLen > DKIM_MaxLen)
{
break;
}
var res = _DKIM.Sign(msg);
if (res.IsError)
{
res.errorTo(rtv);
return(rtv);
}
break;
}
if (String.IsNullOrEmpty(SmtpHost))
{
var hostRes = new DNS_MX().QueryOne(msg.To[0].Host);
if (hostRes.IsError)
{
hostRes.errorTo(rtv, "发送邮件失败：无法解析收件服务器");
return(rtv);
}
SmtpHost = hostRes.Value;
}
smtp.Host = SmtpHost;
smtp.Port = SmtpPort;
smtp.EnableSsl = SmtpSSL;
if (!String.IsNullOrEmpty(User))
{
smtp.Credentials = new NetworkCredential(User, Password);
}
smtp.Timeout = timeout;
//统一用7位，不然不支持的服务器没法统一进行签名
smtp.DeliveryFormat = SmtpDeliveryFormat.SevenBit;
if (OnSendBefore != null)
{
if (!OnSendBefore(msg, smtp))
{
rtv.error("邮件发送前被取消");
return(rtv);
}
}
//不能用异步方法，.Net SendAsync方法有bug，本应通过IsUnicodeSupported=ServerSupportsEai&&DeliveryFormat来判断是否支持utf-8，然而异步方法手贱直接用ServerSupportsEai来判断，导致DeliveryFormat无法控制编码方式！！表现为：支持SMTPUTF8的服务器100%不编码，不支持的100%编码。
smtp.Send(msg);
return(rtv);
} catch (AggregateException ex) {
var e = ex.InnerException;
rtv.fail("邮件发送出错：" + e.Message, e.ToString());
return(rtv);
} catch (Exception e) {
rtv.fail("邮件发送异常：" + e.Message, e.ToString());
return(rtv);
} finally {
if (msg != null)
{
msg.Dispose();
}
if (smtp != null)
{
smtp.Dispose();
}
}
}
