Question

Powershell: return a list of mailboxes which are near or over the maximum capacity

a) Get-Mailbox -SizeLimit
b) Measure-Object -Property
c) New-Mailbox -Capacity
d) Set-Mailbox -MaxSize

Answer 1

To list mailboxes near or over their capacity, use PowerShell cmdlets like Get-Mailbox and Get-MailboxStatistics, combined with Where-Object to filter by IssueWarningQuota or ProhibitSendQuota. The commands provided in the question options do not directly achieve this.

Step-by-step explanation:

To return a list of mailboxes which are near or over the maximum capacity using Powershell, you would likely need to use a combination of PowerShell cmdlets to gather information about mailbox sizes and their limits. Unfortunately, none of the options provided (a, b, c, d) will directly provide the desired information as the Get-Mailbox cmdlet does not have a -SizeLimit parameter. Instead, you could use the Get-Mailbox cmdlet combined with Get-MailboxStatistics. The Get-MailboxStatistics cmdlet provides information about the size of the mailbox, and when combined with Where-Object, you can filter the mailboxes that are near or over their IssueWarningQuota or ProhibitSendQuota. An example command might look like this:

Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics | Where-Object {
$_.TotalItemSize -gt $_.IssueWarningQuota -or
$_.TotalItemSize -gt $_.ProhibitSendQuota
} | Select-Object DisplayName, TotalItemSize, IssueWarningQuota, ProhibitSendQuota

This would give you a list of all mailboxes that are above their issue warning size or prohibit send size, effectively showing those that are near or at capacity.