I own a @qq.com email address. This is hosted somewhere in China and it is known that there are lags, downtimes, etc.
Which happens quite regularly.
Which pops this up regularly too:
The idea? A setting somewhere to just ignore this error, so it doesn’t pop the ‘Operations’ dialog 2 times every hour!
This, or maybe, a more technical setting for the IMAP server which would throttle the amount of connections per minute or something.
Because I suspect that even though the @qq.com servers are crap, they may also become unresponsive when there are too many queries from a single user. Or something.