IMAP frontend authenticating proxy with GSSAPI/Kerberos SSO

[Timo Sirainen]

On 1 Aug 2019, at 12.26, Gert van Dijk via dovecot <dovecot at dovecot.org> wrote:
> 
> passdb {
>  args = proxy=y host=127.0.0.1 port=1143 pass=#hidden_use-P_to_show#
..
> auth: Info: static(username,1.2.3.4,<9WOjSwWP8toKAAYE>): No password
> returned (and no nopassword)

I think this is why it's not using the passdb at all. Try adding password=something to the args.