Dovecot 2.3.7 - char "-" missing

[Sami Ketola]

> On 30 Aug 2019, at 13.44, Domenico Pastore via dovecot <dovecot at dovecot.org> wrote:
> 
> Hello,
> 
> i have update dovecot from version 2.2.15 to 2.3.7.2.
> I have a problem with mine java software because there is a different 
> response when open connection to doveadm.
> 
> I need open socket to doveadm for get imap quota of a mailbox.
> 
> With version 2.2.15:
> # telnet 192.160.10.4 924
> Trying 192.160.10.4...
> Connected to 192.160.10.4.
> Escape character is '^]'.
> -
> 
> 
> With version 2.3.7.2:
> # telnet 192.160.10.3 924
> Trying 192.160.10.3...
> Connected to 192.160.10.3.
> Escape character is '^]'.
> 
> 
> The difference is "-" character. The version 2.3.7 not respond with "-" 
> character after opening the connection.
> 
> Is it possible to add the character again with a parameter?
> 
> Why did doveadm's answer change?


Because the behaviour in 2.2.15 was a bug. It was against the specification:

https://wiki.dovecot.org/Design/DoveadmProtocol <https://wiki.dovecot.org/Design/DoveadmProtocol>

Fix you app to handshake first or use doveadm http api:

https://wiki.dovecot.org/Design/DoveadmProtocol/HTTP <https://wiki.dovecot.org/Design/DoveadmProtocol/HTTP>

Sami

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