Solutions to Fix Outlook For Mac Sync Errors It’s easy to use and supports Microsoft Outlook 2019, 2016, 2011 for Mac. Tip: Want to instantly save Outlook’s OLM file as importable PST file? Use Stellar Converter for OLM to convert all OLM items such as emails, attachments, contacts, etc. Missing important Outlook for Mac updates.Outlook for Mac is running in offline mode.Reasons Behind “Outlook for Mac Not Syncing with Exchange Server” Issue These issues usually occur when Outlook’s connection with the Exchange server is disrupted or the Outlook database is corrupted. Outlook for Mac users often report issues such as “ Outlook for Mac Not Syncing with Exchange Server” or “ Outlook 2016 for Mac not connecting to Exchange”. It also provides an advanced software you can use to convert Outlook’s OLM data into an importable PST file if you cannot fix Outlook for Mac Sync Errors. This post provides the reasons behind these issues and different solutions to fix them. Summary: Outlook sync issues such as Outlook for Mac not Syncing with Exchange Server are common.