Hello, team.
Currently the organization where I work is exploring the different functionalities provided by O365 in terms of Exchange Online and its retention by trial, I have the required licensing to use this functionality.
Currently I have not had to enable Exchange Online archiving, since the E3 licensing capacity is 100 GB for Exchange Online, taking into account this observation I have the following doubts or questions.
Can I enable retention by trial to all my mailboxes, without the need to enable Exchange Online archiving?
Can I enable Exchange Online archiving, once the retention by trial has been enabled?
Can Exchange Retention by trial be considered as a backup?