[英]JavaMail - multiple senders
我有一個簡單的 javamail 類來通過 SMTP 發送電子郵件。 只要我只從一個地址發送電子郵件,它就可以工作。 如果我嘗試使用另一個地址,它會出於某種原因引發此異常:
com.sun.mail.smtp.SMTPSendFailedException: 550 5.1.0 Use your own address, please.
這是我的課:
public class EmailSender {
private static final String HOST = "xxxx.xxxxxx.xx";
private static final String PORT = "xx";
public static boolean sendMail(String from, String to, String pass, String subject, String text) {
Properties properties = new Properties();
properties.setProperty("mail.smtp.host", HOST);
properties.setProperty("mail.smtp.port", PORT);
properties.setProperty("mail.smtp.auth", "true");
properties.setProperty("mail.user", from);
properties.setProperty("mail.password", pass);
Session session = Session.getDefaultInstance(properties, new CustomAuthenticator(from, pass));
try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
message.setSubject(subject);
message.setText(text);
Transport.send(message);
return true;
} catch (MessagingException e) {
e.printStackTrace();
return false;
}
}
}
如果您想知道,CustomAuthenticator 類如下所示:
public class CustomAuthenticator extends Authenticator {
private String user;
private String pw;
public CustomAuthenticator(String username, String password) {
super();
this.user = username;
this.pw = password;
}
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user, pw);
}
}
所以我發現解決方案是使用 SMTPTransport 類。
public class EmailSender {
private static final String HOST = "xxxx.xxxxxx.xx";
private static final String PORT = "xx";
public static boolean sendMail(String from, String to, String pass, String subject, String text) {
Properties properties = new Properties();
properties.setProperty("mail.smtp.port", PORT);
properties.setProperty("mail.smtp.auth", "true");
Session session = Session.getDefaultInstance(properties, new CustomAuthenticator(from, pass));
try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
message.setSubject(subject);
message.setText(text);
SMTPTransport tp = (SMTPTransport) session.getTransport();
tp.connect(HOST, from, pass);
tp.sendMessage(message, message.getAllRecipients());
tp.close();
return true;
} catch (MessagingException e) {
e.printStackTrace();
return false;
}
}
}
您的服務器不會讓您使用不屬於您的地址。 根據您的服務器,可能有一種方法可以說服它另一個地址也是您的。 通常“您的”是指“與您登錄時使用的帳戶相關聯的地址”。
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