mailkit验证失败

我的问题:

相同的代码在一个实例中可以正常工作,但不能在项目的另一个实例中使用相同的用户名/密码进行身份验证。

我的代码:

static NetworkCredential _emailLoginCredentials;
_emailLoginCredentials = new NetworkCredential(_accountName, _accountPassword, _accountDomain);

using (var client = new ImapClient(new ProtocolLogger("C://Temp//Logs//imap1.log")))
{
    var credentials = _emailLoginCredentials;
    var uri = new Uri(_emailServer);
    string serverReply = String.Empty;

    client.Timeout = _imapClientTimeOut;
    client.Connect(uri);
    client.AuthenticationMechanisms.Remove("XOAUTH2");
    client.Authenticate(credentials);
    client.Inbox.Open(FolderAccess.ReadWrite);
}

错误:

Connected to imap://mail.company.com:143/?starttls=when-available
S: * OK The Microsoft Exchange IMAP4 service is ready.
C: A00000000 CAPABILITY
S: * CAPABILITY IMAP4 IMAP4rev1 AUTH=NTLM AUTH=GSSAPI AUTH=PLAIN UIDPLUS CHILDREN IDLE NAMESPACE LITERAL+
S: A00000000 OK CAPABILITY completed.
C: A00000001 AUTHENTICATE PLAIN
S: +
C: ZljbAY3hDYXJhdHNkZXYAQ2FyYXRzMTIz
S: A00000001 NO AUTHENTICATE failed.
C: A00000002 LOGIN username Password
S: A00000002 NO LOGIN failed.

来自工作项目的日志(相同代码):

Connected to imap://mail.company.com:143/?starttls=when-available
S: * OK The Microsoft Exchange IMAP4 service is ready.
C: A00000000 CAPABILITY
S: * CAPABILITY IMAP4 IMAP4rev1 AUTH=NTLM AUTH=GSSAPI AUTH=PLAIN UIDPLUS CHILDREN IDLE NAMESPACE LITERAL+
S: A00000000 OK CAPABILITY completed.
C: A00000001 AUTHENTICATE PLAIN
S: +
C: AN4FyYXRzZGV2AENhcmF0czEyMw==
S: A00000001 OK AUTHENTICATE completed.

为了解决这个问题,我甚至硬编码了用户名和密码。然而,结果仍然是一样的——一个工作,另一个不工作。

嗯,在项目设置等方面有一些不同。例如,在非工作项目中,我在互斥体中使用上面的身份验证代码。另外,整个方法是 protected override async Task Process(TaskMessage message)

找到了这篇文章,但它是由与我的案件无关的NTLM引起的。

Mailkit Authenticate to Imap fails