[Dovecot] IPv6-enabled dovecot-1.1rc* does not accept IPv4-connections

[Bernhard Schmidt]

Timo Sirainen <tss at iki.fi> wrote:

>> I'm having a really really strange problem. After upgrading from
>> 1.1.beta13 to 1.1.rc2 (happened with rc1 as well IIRC) I can't connect
>> to the services using IPv4 anymore. dovecot happily binds to the IPv6
>> wildcard socket which should accept IPv4 connections as well.
> Dovecot no longer binds to both IPv6 and IPv4 using the same socket to  
> avoid those stupid ::ffff:1.2.3.4 mapped addresses. Use:
>
> listen = [::], *

Yes, found that two minutes after my post. Was about to formally recall
my report, but now I'm hitting another issue:

Mar  8 13:02:57 vs02 deliver((null)): User request from dovecot-auth
timed out
Mar  8 13:02:57 vs02 postfix/pipe[30987]: 560043830E:
to=<berni at vmail.mail.mucip.net>, orig_to=<berni at birkenwald.de>,
relay=dovecot, delay=152, delays=4.4/87/0/60, dsn=4.3.0, status=deferred
(temporary failure)

I guess I missed something else, that used to work with beta13 as well.
Any hints?

Regards,
Bernhard