[Evolution] Error while performing operation

[Daniel Bartolo <danbar onvol net>]

I'm using evolution in Ubuntu Feisty Fawn. 

There is an error message for every email I send. It says: Error while
performing operation: Failed to append to. Could not parse URL.
Appending to local sent folder instead.  

When I click on reply from someone who wrote an email, evolution will
crash.  Why?

Thanks in advance.