October 5, 2012 Has your Exchange-based Outlook mail client performance gotten slower over time? Or do you often get a message saying something like “Requesting data from Microsoft Exchange Server” that is slow to clear before you see your mail update?
If so, you may have a problem that most people are not aware of: you may have reached Exchange’s , not size, and that count is not that hard to reach well before you run out of mailbox storage space.
Well, unlike when you hit your space limit, you won’t get a warning dialog box and you won’t be prevented from sending mail if you go well over it.
That means Exchange Server 2010 has pretty much eliminated the problem since most users will probably hit their mailbox storage size limit well before reaching 100,000 items in one folder.
The ultimate goal of OE Classic is to be an easy to use, fast, small and secure program with lots of power features and yet, easy to use for a beginner.
Your data always belongs to you as it is stored in a public-domain format and there are no storage size limits.
In the articles above Microsoft states that to maintain performance on Exchange 2007, you want to keep Contacts and Calendar folders under 5000 items each, and that for Exchange 2010 the limit for each is 10,000 items.
Apparently in Exchange 2003, those folders have the same limits as the mail folders (2500 to 5000 items).