When processing a user resetting a mailbox or password, does sending a mailbox verification code require a queue to be performed?

Sending an email verification code is a key security step when a user resets his/her mailbox or password. So, does this operation require the help of a message queue? The answer is: It is highly recommended to use it.

This involves system stability and user experience. Sending emails depends on external mail services, which may cause delays or failures due to network or server problems. Synchronous sending will block user requests, resulting in poor user experience, and even long waits or operation failures.

Using message queues, the task of sending emails can be asynchronous. Even if the email is sent, the queue can ensure that the task will not be lost and retry it, ultimately ensuring that the verification code is delivered to the user. This is transparent to the user and does not perceive potential network problems or server failures.

In addition, queues also have advantages in fault tolerance. For example, if the mail service provider fails, it can switch to the backup service provider, and the existing tasks in the queue will not be lost, and the system can compensate and send to ensure the continuity of the service.

It is recommended to integrate this technology even if the current system does not use message queues. It can significantly improve system reliability and user experience, and its value is even more prominent when dealing with tasks that interact with external services. In short, to ensure user experience and system stability, it is best practice to use message queues in a critical step like sending verification codes.

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