RES: Possible IMAP IDLE bug in Dovecot 2.2.18 and 2.2.25

[Cleber @ Listas]

Hello Aki,

The Smartermail don't support IDLE command at CAPABILITY:

Dovecot:
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE
STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready.

Smartermail:
* CAPABILITY IMAP4rev1 AUTH=CRAM-MD5 UIDPLUS QUOTA XLIST CHILDREN

In this case, would not the because Dovecot send the IDLE command to
SmarterMail.


-----Mensagem original-----
De: dovecot [mailto:dovecot-bounces at dovecot.org] Em nome de Aki Tuomi
Enviada em: terça-feira, 23 de agosto de 2016 13:25
Para: dovecot at dovecot.org
Assunto: Re: Possible IMAP IDLE bug in Dovecot 2.2.18 and 2.2.25



On 23.08.2016 19:15, Aki Tuomi wrote:
>
>
> On 23.08.2016 15:08, cleber-listas at inetweb.com.br wrote:
>> Hello Guys,
>>   I guess that I found a bug in Dovecot 2.2.18 and 2.2.25 versions. 
>> The problem it's when I try to connect in a Dovecot used a proxy to 
>> another e-mail server (in our case it's a Smartermail Server) the 
>> DoveCot send a lot of IDLE commands to the destination server. With 
>> that, the LOG files grow and grow and grow :(
>>      I make a test with 1 connection only and if you see the log file 
>> in the same second the dovecot send 25, 40 IDLE commands. But, when I 
>> disconnect the client (outlook 2013) the dovecot continue to send the 
>> IDLE command for some seconds.
>>      If I try to connect directly to Smartermail with Outlook this 
>> don't occurrs.
>>
>
> Just to be sure, the behaviour you are expecting is that IDLE is not 
> used, right?
>
> Aki

Also, looking at the code, IDLE is only used if your server claims to
understand it, so could you do following:

telnet backend-host backend-port
a CAPABILITY
a LOGIN username password
a CAPABILITY
a LOGOUT

and provide the output.

Aki