请问如何使用Outlook邮件服务器发送邮件？查看文件时需要验证身份

Question

原因是微软之前对邮件身份验证进行了更改，导致发送失败。在线寻找答案时，需要在Azure中申请注册，并按照答案流程添加权限。经过这些操作后，使用 OAuth2 身份验证时身份验证失败。用于比较答案的代码步骤完全一致，但不清楚问题是在 Azure 还是其他地方设置的。

这是代码：

package com.tianrun.common.email;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class OAuth2Helper {
    public static void main(String[] args) throws Exception {
        String accessToken = getAccessToken();
        sendEmail(accessToken, "****@outlook.com", "******", "Subject", "Body of the email");
    }

    private static String getAccessToken() throws Exception {
        String clientId = "****";
        String clientSecret = "****";
        String tenantId = "*****";
        String scope = "https://outlook.office365.com/.default";

        String authUrl = "https://login.microsoftonline.com/" + tenantId + "/oauth2/v2.0/token";
        URL url = new URL(authUrl);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        conn.setDoOutput(true);

        String postParams = "client_id=" + clientId +
                "&scope=" + scope +
                "&client_secret=" + clientSecret +
                "&grant_type=client_credentials";

        conn.getOutputStream().write(postParams.getBytes());

        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String inputLine;
        StringBuffer content = new StringBuffer();
        while ((inputLine = in.readLine()) != null) {
            content.append(inputLine);
        }
        in.close();
        conn.disconnect();

        // Parse the JSON response to get the access token
        String accessToken = content.toString().split("\"access_token\":\"")[1].split("\"")[0];
        System.out.println(accessToken);
        return accessToken;
    }

    private static void sendEmail(String accessToken, String sender, String recipient, String subject, String body)
            throws MessagingException {
        Properties props = new Properties();
        props.setProperty("mail.debug", "true");
        props.setProperty("mail.smtp.auth", "true");
        props.setProperty("mail.host", "smtp.office365.com");
        props.setProperty("mail.transport.protocol", "smtp");
        props.setProperty("mail.smtp.port", "587");
        props.put("mail.smtp.ssl.protocols", "TLSv1.2");
        props.put("mail.smtp.starttls.enable", "true");

        // Create a custom Authenticator with the OAuth2 access token

        Session session = Session.getInstance(props, null);

        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress(sender));
        message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipient));
        message.setSubject(subject);
        message.setText(body);

        Transport.send(message);
    }
}

这是错误日志

javax.mail.AuthenticationfailedException: 535 5.7.3 Authentication unsuccesful [SI2PR6CA0e12.apcprd6.prod.outlook.com 224-11-1T96:16:51.8952 809172787151CE]

Answer 1

我尝试使用以下 Java 代码使用

Mail.Send

范围向 Outlook 帐户发送电子邮件，并成功将电子邮件发送到 Outlook 帐户。

OutlookMailSender.java :

import com.azure.identity.InteractiveBrowserCredential;
import com.azure.identity.InteractiveBrowserCredentialBuilder;
import com.microsoft.graph.authentication.TokenCredentialAuthProvider;
import com.microsoft.graph.models.*;
import com.microsoft.graph.requests.GraphServiceClient;
import java.util.Arrays;

public class OutlookMailSender {
    private static final String CLIENT_ID = "<clientID>";
    private static final String TENANT_ID = "common";
    private static final String[] SCOPES = {"Mail.Send"};

    public static void main(String[] args) {
        try {
            InteractiveBrowserCredential credential = new InteractiveBrowserCredentialBuilder()
                    .clientId(CLIENT_ID)
                    .tenantId(TENANT_ID)
                    .build();

            TokenCredentialAuthProvider authProvider = new TokenCredentialAuthProvider(Arrays.asList(SCOPES), credential);
            GraphServiceClient<?> graphClient = GraphServiceClient
                    .builder()
                    .authenticationProvider(authProvider)
                    .buildClient();

            Message message = new Message();
            message.subject = "Holiday Notice";
            ItemBody body = new ItemBody();
            body.contentType = BodyType.TEXT;
            body.content = "I am currently on holiday and will respond to your email upon my return.";
            message.body = body;

            Recipient toRecipient = new Recipient();
            toRecipient.emailAddress = new EmailAddress();
            toRecipient.emailAddress.address = "[email protected]";
            Recipient ccRecipient = new Recipient();
            ccRecipient.emailAddress = new EmailAddress();
            ccRecipient.emailAddress.address = "[email protected]";

            message.toRecipients = Arrays.asList(toRecipient);
            message.ccRecipients = Arrays.asList(ccRecipient);
            UserSendMailParameterSet sendMailParameterSet = new UserSendMailParameterSet();
            sendMailParameterSet.message = message;
            sendMailParameterSet.saveToSentItems = Boolean.FALSE;
            graphClient.me().sendMail(sendMailParameterSet).buildRequest().post();
            System.out.println("Email sent successfully!");
        } catch (Exception e) {
            System.err.println("Error sending email: " + e.getMessage());
        }
    }
}

pom.xml：

<dependencies>  
    <dependency>  
        <groupId>com.azure</groupId>  
        <artifactId>azure-identity</artifactId>  
        <version>1.9.0</version>  
    </dependency>  
    <dependency>  
        <groupId>com.microsoft.graph</groupId>  
        <artifactId>microsoft-graph</artifactId>  
        <version>5.13.0</version>  
    </dependency>  
    <dependency>  
        <groupId>org.slf4j</groupId>  
        <artifactId>slf4j-api</artifactId>  
        <version>2.0.0-alpha1</version>  
    </dependency>  
    <dependency>  
        <groupId>org.slf4j</groupId>  
        <artifactId>slf4j-simple</artifactId>  
        <version>2.0.0-alpha1</version>  
    </dependency>  
</dependencies>

我已在 Azure AD 应用程序的 Authentication 下的