dovecot - Aug 2010 - Error message Apache

I've setup Apache 2.2.9 for SOGo 1.3.2 on Debian 5.0.5. I know that the
developers of Debian 5.0.5 are sometimes making choices which are not handy.

Which modules in Apache do I have to enable to make SOGo 1.3.2 working?
That's what I understand from the error message here under.

Greetings, Frank

Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request POST /SOGo/so/test/preferences.

Reason: Error reading from remote server

On 8/11/2010 6:42 AM, Frank van Amsterdam wrote:
> I've setup Apache 2.2.9 for SOGo 1.3.2 on Debian 5.0.5. I know that the
developers of Debian 5.0.5 are sometimes making choices which are not handy.
>
> Which modules in Apache do I have to enable to make SOGo 1.3.2 working?
That's what I understand from the error message here under.
>
> Greetings, Frank
>
> Proxy Error
> The proxy server received an invalid response from an upstream server.
> The proxy server could not handle the request POST
/SOGo/so/test/preferences.
>
> Reason: Error reading from remote server
>
This mailing list is for DOVECOT, an imap/pop3 server NOT apache (httpd) 
or any other webserver.

Please go to the #httpd channel on freenode's IRC

J. G.