Hello, One of my production servers has recently began having high load. When I run 'uptime' command it shows a value of 30 or even 40. That particular server has two websites (WordPress and a custom app) and owncloud. It serves 90 mailboxes. Hardware specification is: CPU Q6600, 8 GB RAM, 250 GB HDD (160 GB used). When users send mail (if it goes through), they have 3 or 4 copies of the sent mail in sent folder. Database sync takes forever. The server is generally unresponsive. What should I do? Please help.