How to make a drawer for the user of my application?

Question

Flask

Hello.

There is a portal. There are users. I want to make a mailbox for the user, so that letters coming to this mailbox are attached to the portal user account. I would like to understand all the subtleties about the implementation of such a requirement, namely:

• How to create a unique mailbox for a user?
  
• How to implement the box itself, so that you do not have to poll some other box periodically, but explicitly catch the event that the letter has arrived?
  
• Do I understand correctly that it is easier to implement the SMTP server yourself, and already within the framework of this server, watch who the letter is going to and process?
  
• What are the transport settings?
  

In general, I still do not even understand what approach to use.

Thank you.

Answer 1

https://tech.yandex.ru/pdd/doc/reference/email-add...