[Dovecot] Ubuntu-12.04-LTS repos with Dovecot-2.2 and Pigeonhole

Hi,

I would like to take advantage of new features in Dovecot 2.2 on my servers. But I'm having difficulties to build packages for Ubuntu-12.04-LTS.

Does anyone know a repository that has new stable versions for Dovecot and Pigeonhole ?

Thanks ! --  Thiago Henrique adminlinux.com.br