Forum Discussion
Legacy on-prem journal mailboxes
That scenario is against the usage terms/license agreement, as mentioned for example here: https://docs.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-limits#mailbox-storage-limits
Archive mailboxes can only be used to archive mail for a single user or entity (such as a shared mailbox) for which a license has been applied. Using archive mailboxes as a means of storing mail from multiple users or entities is prohibited. For example, an IT administrator can't create a shared mailbox and have users copy it (through the Cc or Bcc field, or through a transport rule) for the explicit purpose of archiving.
Technically, you can assign the necessary license and enable auto-expanding archive for the mailbox and ingest data up to the 1.5TB limit.
Hi. Thanks for your reply.
According to this https://docs.microsoft.com/en-us/microsoft-365/compliance/autoexpanding-archiving?view=o365-worldwide#:~:text=The%20archiving%20feature%20in%20Microsoft,archive%20mailbox%20reaches%201.5%20TB. , there is a restriction of 1GB of data growth per day - would importing the PST files attribute to this data growth limitation and would I technically be able to automate the import of multiple PST files without restrictions?
Also, you mentioned about relevant licensing...if I used a shared mailbox would licensing still apply and I assume that 1.5tb archive also applies to shared mailboxes?
Thanks
VasilMichev please advise on the above. Thanks
