On Mon, 2010-09-13 at 15:36 +0100, Alan Brown wrote:
>
> protocol imap {
> disable_plaintext_auth=no
> }
>
> The default has changed from "no" to "yes" between 1.1.20 and 2.0.1,
No it didn't. The default has always been "yes" since the first Dovecot
version.