Thomas,

and should I keep cache?

// lifetime of message cache
// possible units: s, m, h, d, w
$rcmail_config['message_cache_lifetime'] = '10d';

Thanks,

Felipe Neuwald.

Thomas Bruederli escreveu: 
Felipe Neuwald wrote:
  
Yesterday, I migrated my webmail 
system to roundcube, but, when I have something about 1 hour of user, 
the system hangs with a lot of httpd processes. I had to back my webmail 
system to squirrelmail to get my system working again.

Does anybody knows why this is happening?

[...] 

// use persistent db-connections
$rcmail_config['db_persistent'] = TRUE;
    

There have been reports with persistent mysql connections causing problems.
Try to set this parameter to false.

~Thomas