In general, Outlook will automatically update the Offline Address Book (OAB) for Exchange accounts once every 24 hours. When it didn’t or when you want to make sure you do have the latest OAB available, you could manually trigger an update from within Outlook as well.

Microsoft Outlook Mac Not Working

So, did an experiment today, because I'm finding more and more that I need to send documents and such to colleagues, sometimes from my home computer, sometimes my iPad, and while I like Pages and Numbers just fine, it gets a little tedious to always convert them into Word and Excel files. Also, I've now got two copies of everything in the two different formats, which makes navigating through folders a little weird sometimes. So, I did a start-up test today with Outlook, Word, and Excel, vs Mail, Pages, and Numbers. My results are interesting: For the record, I've got a Mac Mini Late 2014 base model (so 4gb RAM, 1.4ghz Haswell, regular 500 GB HDD, etc etc). Not changing any of it until I buy a new machine in 3-4 years, so don't tell me to do that! For the experiment, I timed from the clicking of the icon to 'on', on meaning open and ready to select a file or do business or whatever.