Case: You have several accounts in Thunderbird and you want to have one folder that will show you the messages from all the accounts. In this case the folder will show all the emails in the sent folder of each account that where sent in less than 7 days. Requisites: Thunderbird. Steps: Go to 'Local Folders' and then to 'Search Messages...'. Click on 'Save as Virtual Folder'. Put a name to the new folder and click on 'Choose...'. Check the folders you want the messages to be collected from and click 'OK'. Tick 'Search Online' and put the criteria, in this case all the messages that were sent less than 7 days. Then click on 'Update'. Results: The 'Sent' folder will be created and will show the messages in the folders defined that comply with the criteria.
