Jira incoming mail handler created so many letters

zaharovvv_suek_ru

I've created a mail handler for an existing email box. This email box contains more than 1000 letters. And Jira mail handler created more thar 1000 issues.
My thoughts were that Jira mail handler should create only for future new incoming letters.

So, please, answer to my questions:
1. How to turn on mail handler for an existing email box with existing letters(more than 1000 letters) without creating issues for existing letters? Jira should create issue just for new email leters.
2. Why did Jira create issues for existing letters, but not for new letters?

3. What will happen if I move letters into another folder, for example: 'Existed', but inbox("Входящие") will be empty. Will Jira create new 14 issues? Please, see an image:

Steven F Behnke

That's how the implementation works. It reads all messages in IMAP folder and creates issues for each one. Then it deletes the email messages.

1. Jira Reads Email
2. Jira Creates Issue Or Comment From Email 
3. Jira Deletes Email

If you are on Jira Server or Jira Data Center, you may supply your own implementation in the form of a Java Class.