[Dovecot] Dovecot Director behaviour when two or more fail

Hi,

On the Dovecot wiki here http://wiki2.dovecot.org/Director it says the following:

"The directors are going to connect to each others in a ring. For example if you have servers called A, B and C, director will create connections A->B, B->C and C->A"

I am curious what happens in a scenario when two or more directors fail and potentially break a ring in half, do the active directors detect this and reform a new ring?

Dominic