Exchange Report by Powershell

Hi gays, i would like to share with you my case! i want to extract some informations from our Exchange Server, as i am new with PowerShell, i would like to give me some ways to get my objective ?
For example : how to get the Maximum number of recipients for each user mailbox ?
and how to get the size of mailbox for each user ? 

Sorry the Screenshot is in Frensh, the operation to get the information is with following the Steps 1, 2 and 3 .
In English, Mailbox functionalities, mail flow, see details and , Limits of recipients .