Upgraded from ubuntu 11.10 to ubuntu 12.04. Got same error when sending. It seems that evolution stores quite differently from the past.
I just did what Matthew suggested: Edit > Preferences > Mail Accounts > [ select my default mail account ] > 'Edit' button > 'Defaults' tab and then setting a folder (ex. 'On This Computer' > Sent), clicking OK After this, in the 'Defaults' tab it should say "Sent Messages Folder: <click here to select a folder>" Thanks a lot. It was a very annoying pop up. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to evolution in Ubuntu. https://bugs.launchpad.net/bugs/850106 Title: Fails to append sent mail to mbox in post-processing To manage notifications about this bug go to: https://bugs.launchpad.net/evolution/+bug/850106/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs