dovecot - Mar 2015 - Error: open() failed with file /var/vmail/... Too many open files

I've already tried creating etc/default/dovecot chmod +x it and inside put
ulimit but didn't work.

Also i've tried to put the ulimit into the /etc/init.d/dovecot linked file
but i found still 1024 the limit kn dovecot.
El 27/03/2015 22:03, Timo Sirainen <tss at iki.fi>
escribi?:
>
> On 26 Mar 2015, at 16:52, Silvia Tormo <silvia.tormo at addapta.com>
wrote:
> > 
> > Hello guys we have Dovecot 2.0.19 and we are getting those errors
opening
> > files of dovecot Too many open files, we?ve tried to increase limits
in
> > /etc/security/limits 
>
> /etc/security/ settings don't affect Dovecot (or any other server
program). You need to put the ulimit commands somewhere in the init script. Or
perhaps adding the ulimit command to /etc/default/dovecot would work. I
don't know what's the correct Ubuntu way to do it.