如何处理 Messaging.sendEmail() 中的错误？
我编写了发送电子邮件的代码。它工作正常，但我的目标是：
当有人发送到不存在的电子邮件地址时，我想将结果记录为“错误”或“失败”等（当电子邮件地址有效时，只需说“成功”）
我已经使用下面的代码尝试了两件事。
提供了非电子邮件字符串“foo@!”
提供的电子邮件地址不存在 '[电子邮件受保护]'< /p>
< strong>结果：
执行情况1导致代码进入catch块，从而在html页面上输出预期的错误消息。
执行案例 2 导致代码返回 'ok sent!'
几分钟后，我收到了发送失败的电子邮件。
我的猜测是 SendEmailResult 对象的 isSuccess() 并不真正负责不存在的电子邮件地址检查。它只关心电子邮件是否被解雇？？？
如果电子邮件帐户不存在，是否有任何方法可以记录，以便我可以在我的 Apex 代码中记录此类情况？
try {
Messaging.SendEmailResult[] resultMail = Messaging.sendEmail(new
Messaging.SingleEmailMessage[] { mail });
resultMail[0].getErrors();
//display success or error message
if (resultMail[0].isSuccess()) {
response = 'ok sent!';
} else {
response = resultMail[0].getErrors().get(0).getMessage();
}
//log
boolean isSuccess = resultMail[0].isSuccess();
Integer out = EmailLogger.logEmailSent(this, isSuccess);
} catch (System.EmailException ex) {
system.debug('============== email exception caught!!!=============');
response = ex.getMessage();
}
I wrote code to send email. It works fine but my goal is:
When someone sent to non-existing email address, I want to log the result as 'false' or 'failure' etc (and when email address is valid, just say 'success')
I've tried 2 things with the code below.
provided non-email string 'foo@!'
provided non-existing email address '[email protected]'
result:
Execute case 1 caused code to go into catch block thus outputting error message on the html page which is expected.
Execute case 2 caused code to return 'ok sent!'
And after few minutes I received email that delivery failed.
My guess is SendEmailResult object's isSuccess() is not really responsible for non-existing email address check. It only cares if the email is fired???
Is there any way to log if the email account does not exist so I can log such occasion in my Apex code?
try {
Messaging.SendEmailResult[] resultMail = Messaging.sendEmail(new
Messaging.SingleEmailMessage[] { mail });
resultMail[0].getErrors();
//display success or error message
if (resultMail[0].isSuccess()) {
response = 'ok sent!';
} else {
response = resultMail[0].getErrors().get(0).getMessage();
}
//log
boolean isSuccess = resultMail[0].isSuccess();
Integer out = EmailLogger.logEmailSent(this, isSuccess);
} catch (System.EmailException ex) {
system.debug('============== email exception caught!!!=============');
response = ex.getMessage();
}
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电子邮件（SMTP）是一种存储转发协议，在发送时，您无法得知目标电子邮件地址不存在，只有当邮件真正到达最终目标服务器时才能发现。
Email (SMTP) is a store and forward protocol, at the time of sending, you can't tell that the destination email address is non-existant, you can only find that out once the message actually gets to the final destination server.
如果有办法找到电子邮件地址，无论它是否真的存在，垃圾邮件发送者可能会尝试暴力攻击 - 尝试所有可能的电子邮件组合并发送无限的垃圾邮件:)
感谢上帝，这是不可能的。
if there was a way to find email address whether it really exists or not, a spammer might have tried brute force attack - trying every possible combination of email and sending infinite spams :)
thank god, that's not possible.