2023年7月13日 — Important: It is not recommended to have an .ost file of more than 50GB or open a .pst file larger than 50 GB as it might cause an Outlook ...
2023年3月7日 — In Outlook 2010, 2013, 2016, 2019, 2021 and Microsoft 365, this recommended limit has been set to 50GB. You can increase (but also decrease) ...