I have several users who are complaining that Outlook just sits there and pulls their entire email history from the exchange server. Some of them have 2.6 GB of emails that need to be pulled over the wireless. Is there anyway that some of these can be pulled the way they are in Thunderbird where only the headers are pulled and not the entire emails, attachments and all?
If outlook download their entire mailbox and does that every time then something is wrong with the setup.
You can configure outlook in many ways (imap, pop3, webmail, etc), but assuming you configured it in the default way it will connect to an exchange server, download all mail once and keep that in a cache files (.ost) .
The next time it will only downloaded changes.
In addition: 2,6GB is a lot. Is that all their mail? Can you teach them how to archive mail? A setup where outlook automatically collects all mail older than a year and moves it to an archive takes 5 minutes to set up.