How to cancel a send or receive operation?

I can’t find any “cancel” button for a send or receive operation …

Exiting the program works OK

I am sorry, but such a feature is not currently implemented. It is in our feature requests list.

It has been one year since the question was asked.
Will the feature be implemented?
This is critical when you have limited bandwidth available.

Hi, this is not implemented via “cancel” button, but you can set eM Client not to synchronize automatically in Tools - Settings - General - General, uncheck both “Synchornize…” options and then eM Client should synchronize only when you click on “Send and receive” or you will select any option under that button.