I use rules (under Outgoing) to copy sent items which contain [w] in my signature a designated folder on my computer. This is very helpful if I wait for a response, so I have a reminder that I am waiting for an answer. I review the folder weekly and if I received the answer, I delete the message. See http://waiting-for.com for the full explanation.

However, for a while now, the files are neatly copied in the respective folder I created on my computer, but they can not be deleted anymore. The only way I can get rid of them is delete the whole folder. This is only true for emails that end up in the folder by the rule. If I copy a message to the folder manually, I can delete it without a problem.

Anyone with a solution? This is a very useful rule which suddenly stopped working as expected.