dovecot - Feb 2010 - Dovecot 2.0b3 IDLE not advertised

Hi,

I'm not sure whether the client or the server is at fault (probably the
client), but it's clearly a regression for me.

I'm using the LCG Profimail (http://lonelycatgames.com/?app=profimail)
application for my Symbian smartphone which has quite decent IMAP 
capabilities. Amongst others it can do IMAP IDLE (which has to be
statically enabled in the server settings, so it's not used based on the
server capabilities).

After upgrading from 1.2.10 to 2.0b3 it does not connect anymore. It
throws the error message "This server doesn't support IMAP IDLE
connection" in my face, even before it tries to authenticate

Feb 27 00:46:45 mail dovecot: imap-login: Disconnected (no auth
attempts): rip=93.104.73.132, lip=83.170.x.xx, TLS: Disconnected

The main difference seems to be that 1.2 advertises IDLE in capabilities
before authentication, but 2.0 does not:

1.2:
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS
AUTH=PLAIN] Dovecot ready.
o CAPABILITY
* CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE SORT
THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT IDLE CHILDREN NAMESPACE
UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC
* ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH QUOTA STARTTLS AUTH=PLAIN
o OK Capability completed.

2.0:
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS
AUTH=PLAIN AUTH=LOGIN] Dovecot ready.
o CAPABILITY
* CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS
AUTH=PLAIN AUTH=LOGIN
o OK Capability completed.
o LOGIN user password
* CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE SORT
SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT IDLE CHILDREN
NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1
* CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS
QUOTA
o OK Logged in

I know there is the imap_capability setting which might help here, but
that looks like a very big hammer.

Bernhard

On 2/26/2010 6:54 PM, Bernhard Schmidt wrote:
> The main difference seems to be that 1.2 advertises IDLE in capabilities
> before authentication, but 2.0 does not:
Correct... and according to Timo, this is proper IMAP protocol, so you'd
probably be better off taking this up with the Profimail devs...

-- 

Best regards,

Charles

On 27.2.2010, at 1.54, Bernhard Schmidt wrote:
> The main difference seems to be that 1.2 advertises IDLE in capabilities
> before authentication, but 2.0 does not:
http://dovecot.org/list/dovecot/2010-February/047011.html explains this a bit
better. I'll add IDLE to pre-login capabilities if I really have to, but
that's probably going to be the only exception, no other post-login
capabilities will be added there. And I'd prefer not to add IDLE either,
because it's the best way to find clients that can't handle changing
capabilities and then get them fixed.

Do you think there's any chance of getting Profimail fixed by reporting this
as a bug for them? Other new servers besides Dovecot behave in a similar way.

On 2010-03-01 2:56 PM, Bernhard Schmidt wrote:
>> Suggest drop them a line in the first instance? (You could check that 
>> the COMPRESS stuff made it into the released build also since Timo 
>> kindly added support for that to 2.0)
> Lonelycat Games has sent me a fixed build and promised to have it
> incorporated into the next version. Absolutely awesome.
Impressive - almost as fast as Timo... ;)

-- 

Best regards,

Charles