我试图通过使用MailKit我的Outlook.com的电子邮件地址发送电子邮件。
我跟着我在网上看到的所有例子中,这是我所:
public async Task SendEmailAsync(string email, string subject, string htmlmessage)
{
var message = new MimeMessage();
message.From.Add(new MailboxAddress("Service Account", "[email protected]"));
message.To.Add(new MailboxAddress("First Last", email));
message.Subject = subject;
message.Body = new TextPart(TextFormat.Html)
{
Text = htmlMessage
};
using (var client = new SmtpClient())
{
//Have tried both false and true
client.Connect("smtp-mail.outlook.com", 587, false);
client.AuthenticationMechanisms.Remove("XOAUTH2");
client.Authenticate("[email protected]", "mypassword");
await client.SendAsync(message);
client.Disconnect(true);
}
return;
}
如果我设置useSSL
参数true
上client.Connect()
,我得到这个错误:
An error occurred while attempting to establish an SSL or TLS connection
如果我设置useSSL
参数false
,我得到这个错误:
AuthenticationException: AuthenticationInvalidCredentials: 5.7.3 Authentication unsuccessful
我究竟做错了什么?
更新
新增ProtocolLogger
每@jstedfast的建议,这里是结果:
Connected to smtp://smtp-mail.outlook.com:587/?starttls=when-available
S: 220 BN6PR11CA0009.outlook.office365.com Microsoft ESMTP MAIL Service ready at Sun, 10 Feb 2019 03:26:30 +0000
C: EHLO [192.168.1.12]
S: 250-BN6PR11CA0009.outlook.office365.com Hello [73.175.143.94]
S: 250-SIZE 157286400
S: 250-PIPELINING
S: 250-DSN
S: 250-ENHANCEDSTATUSCODES
S: 250-STARTTLS
S: 250-8BITMIME
S: 250-BINARYMIME
S: 250-CHUNKING
S: 250 SMTPUTF8
C: STARTTLS
S: 220 2.0.0 SMTP server ready
C: EHLO [192.168.1.12]
S: 250-BN6PR11CA0009.outlook.office365.com Hello [73.175.143.94]
S: 250-SIZE 157286400
S: 250-PIPELINING
S: 250-DSN
S: 250-ENHANCEDSTATUSCODES
S: 250-AUTH LOGIN XOAUTH2
S: 250-8BITMIME
S: 250-BINARYMIME
S: 250-CHUNKING
S: 250 SMTPUTF8
C: AUTH LOGIN
S: 334 ************
C: ****************
S: 334 ************
C: ****************
S: 535 5.7.3 Authentication unsuccessful [BN6PR11CA0009.namprd11.prod.outlook.com]
顺便说一句,我注释掉了一些东西与*
。我不知道那是什么,如果这是大小写。
尝试以这种方式:
client.Connect("smtp-mail.outlook.com", 587);
client.UseDefaultCredentials = false;
client.Credentials = new System.Net.NetworkCredential(From, Password);
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.EnableSsl = true;
您也可以尝试client.ConnectType = SmtpConnectType.ConnectSSLAuto;
对于MailKit
client.Connect("smtp-mail.outlook.com", 587, SecureSocketOptions.StartTls);
client.Authenticate("[email protected]", "mypassword");
该AuthenticationException
错误意味着服务器拒绝用户名和/或密码。
也许用户名应me
代替[email protected]
?
尝试得到一个协议日志,看到正在使用什么类型的认证机制。
https://github.com/jstedfast/MailKit/blob/master/FAQ.md#ProtocolLog
它看起来好像代码本身的工作原理。但是,要知道,如果你已经设置您的帐户,要求2FA,你会得到错误信息上面表明您的凭据无效。一定要禁用2FA!