Outlook 2016 for Mac is a great email client, but just like everything else in the computer world, nothing is immune from data loss, corruption, or other unfortunate events.īacking up data from email client to local files not only keep your data safe, but can also free up space from mail servers.Īnother important reason to backup Outlook 2016 for Mac data to OLM files is email migration. Backing up data can be necessary thing to do in some cases, but it’s also a good habit to regularly backup your data to a safe location.