since about Sandboxie 4.02 and now 4.04, Thunderbird (latest) was bugging me with following message.
I run it at Win 7 64 bit in an extra sandbox only for Firefox and Thunderbird, standard-settings with extra access to one folder for saving downloaded files.
(translated to english - not original)
Send of message failed.
Temporary File C:\Users\MyUser\AppData\Local\Temp\nsmail.tmp could not be opened.
Check your Settings for "Temporary Directory".
Thunderbird uses the default temp. of the windows system.
By adding the following code to setting/application/local, it seems as if it's working again.
So here is my question:
If that behavior is default, you might as well include the temp-folder into the default settings for thunderbird.
Also I am not sure if my code is "good" or opens some doors, as it's only done by trial-and-error, not by understanding. A short confirmation or correction would be appreciated.