==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.6
- Linux/BSD distribution name and version: Ubuntu 16.04.2 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro?: Yes
- Related log if you're reporting an issue:
====

Logging into the server takes a lot of time and also sending email takes a couple of minutes differently from the experience we had with the old version (0.8.6) (roundcube and SOGo pages take a lot of time to display and send emails while the server is within the LAN), I have tried to look into the logs (mail.log), there is no error and sometimes email is shown as SENT in the log while in the GUI the page is still loading (showing sending email screen).