On 28.3.2013, at 17.35, Łukasz l.chelchowski@eurocar.pl wrote:

Hi

I hope you will understand my problem. I want to make virtual folder called "Virtual/label1-threads". This folder should have:

1. messages labeled fe. $label1 from INBOX and
2. messages from Sent folder inthread refs with those labeled.

message1 <-- $label1 INBOX |----message2 <- Sent ------|-----message3 <- INBOX .....

Can anyone help me with this?

INBOX Sent inthread refs x-mailbox INBOX keyword $label1

Unfortunately currently you'll currently have trouble automatically removing any threads if you unset the $label1. You'd have to delete the dovecot.index* files so it gets rebuilt. Or alternatively use INDEX=MEMORY for the virtual mailbox so it never gets saved, but that's of course slower.