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Shared Mailbox Online Archiving Licensing in Office 365
Hello All, I have a pretty interesting question ( i may already have an answer but need little clarity on this) I have an Organization where i have more than 1000 Shared Mailboxes with Online...
No, the quota for E1 is 50GB, shared between the main mailbox and the archive. It does not get expanded, and if you mean the auto-expanding archives feature, this is only available with EO Plan 2 licenses. So in your examples, you will need EO plan 2 licenses regardless.
I think your query is clearly mentioned in this link: https://docs.microsoft.com/en-us/microsoft-365/admin/email/convert-user-mailbox-to-shared-mailbox?view=o365-worldwide