We recently setup our email with Exchange 2013. Some users have access to email only through OWA. They have been reporting that is very slow and very hard to do email activity. I am not sure what steps to do to troubleshoot this issue.
We have 2 Exchange servers. Looking at the task manager, both have about 40GB of 64GB RAM free and processor hovers around 5% never really more than 10%. Both are physical servers and not virtual machines.
Any guidance?