I have a virtual SBS2008 running Exchange 2010. I have around 50 users that do not like to clean their mailboxes. most of them have around 4 GB of emails. I do have a lot of issues with the .ost files getting corrupted. I notice my server slowing down on speed when i log into it. I guess my question is if I switch them all to pop mail will the server be working less since it does not have to sync with .ost all my incoming and outgoing emails are been copy to a barracuda mail archive. we receive arround a 2gb of emails per day between 5-6 thousand emails per day.
will the performance of the server increase if I switch from imap to pop?
if not is there a way create a rule to auto delete old emails? I know I can lower the mail box size quota but I don't think that will not encourage them to clean their mailbox.
also, I have the server running as a VM, the data storage is not keeping up with the IOPS.