* Timo Sirainen schrieb am 15.10.14 um 01:39 Uhr:
On 14 Oct 2014, at 16:10, Marc Schiffbauer <[email protected]> wrote:
* Timo Sirainen schrieb am 15.10.14 um 00:57 Uhr:
On 14 Oct 2014, at 15:24, Ralf Hildebrandt <[email protected]> wrote:
We're proxying using 2.2.14~rc1 (on our IMAP Proxy) to two dovecot
backend servers running dovecot-2.2.13-r1
When we're using Thundebird to connect to the dovecot proxy, we're
getting the message "The mail server for account ACCOUNTNAME
responded: [COMPRESSIONACTIVE] TLS compression already enabled"
But why?
Is the connection from proxy to backend using SSL? Did this work in earlier
Dovecot version?
I talked to Ralf about this issue today. Yes, proxy to backend is using ssl.
And yes when proxy is talking to a 2.1.17 backend there is no issue.
Right .. If the TLS connection already has compression enabled, Dovecot will refuse
COMPRESS command. But it should be checking this against the original client's TLS
connection and not the proxy's. As a workaround you could set in Dovecot backends
"ssl_options = no_compression". I'll try to figure out how this should be fixed
properly.
Timo, thanks for the workaround. After finding out that this
requires 2.2.14 too (had 2.2.13 before) it works like a charme now.
-Marc
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