Outlook hangs updating folders
However, you may not see the email configuration steps exactly same as they are in the later version (i.e. See how you can configure your IMAP account on Outlook 2013. However, one or more incompatible updates might cause some issues, such as IMAP synchronization problem.
Due to the IMAP issues affecting Outlook 2013 and Office 365, users fail to download their email messages and go on for emailing over the communication channel established.
Under certain circumstances this process can “hang” and indeed cause your computer to slow down quite a bit.
Below you’ll find some common reasons for it and how to troubleshoot it.
If you are willing to leave all of these Outlook windows open during your session, you will receive your IMAP-account emails very quickly.