09-19-2026, 12:38 PM
MBOX to PST conversion is the usual way to move MBOX mailbox data into Outlook across different versions. You only need to convert the MBOX file into a PST once, then open or import that PST in the supported Outlook version.
A tool such as Softaken MBOX to PST Converter can create PST files from single or multiple MBOX files while keeping the folder structure, email attachments, and headers. It also supports Outlook 2021, 2019, 2016, and Microsoft 365.
After creating the PST, open it in the required Outlook version and check a few folders and attachments to confirm the conversion before moving the complete mailbox.
A tool such as Softaken MBOX to PST Converter can create PST files from single or multiple MBOX files while keeping the folder structure, email attachments, and headers. It also supports Outlook 2021, 2019, 2016, and Microsoft 365.
After creating the PST, open it in the required Outlook version and check a few folders and attachments to confirm the conversion before moving the complete mailbox.