About the problem of IMAP, ask God to solve ~~~~~

With IMAP recently, there's a problem that feels tricky:
If there are 2W e-mail accounts, to get a subject from the 20,000 email account of the mail, with IMAP can get to a topic of mail, but 2W account to return 2W mail, to constantly open the closed stream, so it seems easy to crash, even if not crash script to run for a long time, Does the great God have any good solution?

Reply to discussion (solution)

No one answered, pinch ~~~~~~~~~~~~~~~~~.

IMAP has not been studied, but I think there should be no other way to do this, unless it was done early in the day.

