[Dovecot] AUTH PLAIN error with Thunderbird and Dovecot 1.2

[Bernhard Schmidt]

Bernhard Schmidt <berni at birkenwald.de> wrote:

> a few days ago I started to get some complaints about authentication
> delays from Thunderbird POP3 users. After some debugging it turned out
> that the problem was introduced somewhere between 1.2rc3 and 1.2rc7
> (1.2.0 is still affected).

Reverting 76d455a7f4da ("auth: If initial SASL reply was given but
empty, pass it to auth mechanisms.") fixes the problem for me.

Bernhard