Sorry, another faq

[Martin S]

I've installed a mailserver according to these instructions:
http://www.server-world.info/en/note?os=CentOS_7&p=httpd&f=13
When I try to login to the server through Roundcube webmail I get
Connection to storage server failed.

So checking on this

[12-Jun-2015 11:28:53 +0000]: <6jap13r2> IMAP Error: Login failed for
martin from 83.251.209.249. Could not connect to ssl://myserver:993:
Permission denied in
/usr/share/roundcubemail/program/lib/Roundcube/rcube_imap.php on line
198 (POST /roundcubemail/?....

/etc/roundcubemail/config.inc.php

Has the following:
$config['default_host'] = 'ssl://mail.myserver.tld'; [address obfuscated]
$config['default_port'] = 993;

as I understand should be correct.

I've been looking at various posts on the net that says the problem is
a permission on dovecot, but I fail to find anything to how to fix
this as it looks right to me.

Any suggestions?

/Martin S

-- 
Regards,

Martin S