I’ve been wanting to know how to stop outlook from synchronizing for a few years now.Every now and again I tackle the problem but can never find any solutions.Most of the times, Outlook stops responding due to a very large mailbox file that it's causing Outlook to require more resources than the computer can offer.
Btw, before I tried this, I renamed my old file, created a new one, and it still did the same thing. Then I did the procedure above, then imported my mail and folders from the old file. Visibly, not much was new apart from cosmetic changes such as an overall color change to Microsoft’s signature blue and white, font changes, updates to icons and a few user interface tweaks. Update: Outlook now has pre-emptive threading using Apple’s Grand Central Dispatch (GCD) threading model introduced in OS X 10.7.GCD puts the responsibility of managing threads on the operating system rather than with the application.I NEVER want to lose this little piece of information because it finally worked.If you right click on each of the email folders and select “properties” you will see a check box: Automatically generate Microsoft Exchange views”. You will still get a very brief “synchronizing” message, but ONLY while it is actively linking to your POP account.