Filter to copy rather than move
Is it possible to set up a filter to copy incoming mail to another folder rather than moving it? I can't see an option within the filter rules; also I can import a 'move' filter set up in Thunderbird, but not a 'copy' one.
The reason for this, I have set up another email account (let's call it account2) to forward emails to this one (account1), and have a filter to move these to their own folder (folder2), if they contain the account2 email address. However, in the event that I get an email sent to both account1 and account2, I want one copy in my inbox, and one in folder2. The current rule will move both the email sent to account1 and the email forwarded from account2 into folder2.