Created attachment 563402 [details]
roundcube does need a bit of tweaking to run proper while enforced strict
the work around is small and easy:
This would probably need it's own context.
setsebool -P httpd_can_sendmail on
setsebool -P httpd_can_network_connect on
setsebool -P allow_httpd_mod_auth_pam on
setsebool -P httpd_builtin_scripting on
Just a heads up, <mail-client/roundcube-1.4 have been removed from the tree. Not sure if this still applies to what remains or not.