In your Exchange Environment, you might have users who have not\are not logging onto their mailboxes from N number of days.

What if you are asked to find all of those or the ones specific to a Server\DB.

There can be multiple reasons why you might have to find such users, one of which was to find how many mailboxes aren't being used for past 30 days.

$ExServer = Read-host "`n Enter ServerName";[Datetime]$mydate = (Get-Date).AddDays(-30).Date; $CorrectDate = $mydate -f "G";

Get-mailbox -server $ExServer -resultsize unlimited | Get-MailboxStatistics | ?{($_.LastLogonTime -lt "$CorrectDate") -and ($_.LastLogonTime -ne $null)} 

• "$ExServer" is used twice and is the variable which holds ServerName,  you can replace it with "$DB" to find users according to a Database
• "$mydate = (Get-Date).AddDays(-30).Date" is the variable holding days passed, you can edit the number according to your needs
• You can also use below to find all users who haven't logged on to their mailboxes from past 30 days.

[Datetime]$mydate = (Get-Date).AddDays(-30).Date; $CorrectDate = $mydate -f "G";

Get-mailbox -resultsize unlimited | Get-MailboxStatistics | ?{($_.LastLogonTime -lt "$CorrectDate") -and ($_.LastLogonTime -ne $null)}