Forum Discussion
online backup of users email
Let me know your intention little more in details .
I do not see any other mechanism to backup your emails other than exporting a .pst file. there is one more thing , its call .ost (Offline Outlook Data File) its only applicable for O365 and other online email systems ...
Please refer this article ..
https://support.office.com/en-us/article/introduction-to-outlook-data-files-pst-and-ost-222eaf92-a995-45d9-bde2-f331f60e2790
we are exploring what way to backup users emails if they resign suddenly and try something funny by deleting all their emails in their mailbox
Exporting to PSTs is hardly a backup as well, and can get you intro trouble especially if you need to meet compliance requirements. Use the hold functionality as already mentioned above. For "leavers", you can simply use the Inactive mailboxes functionality, which is free: https://docs.microsoft.com/en-us/office365/securitycompliance/create-and-manage-inactive-mailboxes
In this scenario, preservation policy's should do fine! All mails/ changes gets saved so it wouldn't matter if the users tried to delete them! Also company routines to block user/ changing password and so on should be done in this cases!
Read more on retention here:
https://docs.microsoft.com/en-us/office365/securitycompliance/retention-policies
Although, just as a sidenote on your question, Using third party backup tools - backups of mails can be done
For example:
https://www.veeam.com/blog/how-backup-office-365-email.html
Adam
