Recommendations for Thunderbird settings when it hangs copying to "sent folder"

[Klaus P. Pieper]

Ken Murchison schrieb:

> This isn't a problem with Cyrus or TB, its a problem with your NAT 
> router "closing" idle connections.  In TB under the advanced server 
> settings, try changing the number of cached connections to 0 or 1, and 
> disable the use of the IDLE command.
>
Thanks.
Does setting the number of cached connections to 0 or 1 automatically 
disable the use of the IDLE command or is there any other setting involved?

Klaus