Email usage has an important place in our daily lives and in the business world, and will continue to do so.
Within organizations, Exchange Server One of the requests frequently received by managers is “Can you increase mailbox capacity by 10%?” is happening. Of course, in some cases it may be possible to offer “Unlimited” mailbox capacity; however, it is generally recommended to set certain limits in order to balance resource usage.
Example; From you mailbox a IssueWarningQuota, ProhibitSendQuota ve ProhibitSendReceiveQuota They requested a 10% increase in their limits. This means that every mailbox a ($currentquota + %10) you need to calculate.
To assign these new values to users ECP (Exchange Control Panel) you have to proceed through or a long PowerShell You may need to type the command. If this is done for multiple users, it can be time consuming.
Table of Contents
Increase Exchange Server Mailbox Quota by Percentage (PowerShell)
# Bu script EMS üzerinde çalıştırılmalıdır.
.Set-MailboxQuota.ps1 -Mailbox "cengiz.yilmaz" -IncreaseByPercentage 10This command increases the quotas of the mailbox named “cengiz.yilmaz” by 10%. The script automatically sets the new quota values by calculating on the existing quotas.
Additionally, the following command can be used to set all mailboxes to default values on a specific database:
[PS] C:Scripts>.Set-MailboxQuota.ps1 -Mailbox Cengiz.yilmaz -UseDatabaseDefaults
----------------------------------------
Mailbox: Cengiz Yılmaz
----------------------------------------
Uses Database Defaults: False
Warning Quota: 1.88 GB (2,019,086,336 bytes)
Prohibit Send Quota: 1.98 GB (2,126,010,368 bytes)
Prohibit Send/Receive Quota: 2.277 GB (2,444,702,720 bytes)
Script to Increase Mailbox Quota by Percentage in Exchange Server
Below you can find the PowerShell script that I mentioned above, which you can use to increase users' mailbox quotas by percentage in Exchange Server. This script increases the quotas of mail accounts by a certain percentage, saving Exchange Server administrators time and allowing them to automate processes.
<#
.SYNOPSIS
Set-MailboxQuota.ps1 - Configure mailbox quotas for Exchange mailboxes
.DESCRIPTION
This PowerShell script allows you to quickly set mailbox quota values for
one or more Exchange mailboxes. You can use this script to set the mailboxes
to use the database quota defaults, increase by a specified percentage, or
decrease by a specified percentage.
.OUTPUTS
Results are output to console.
.PARAMETER Mailbox
The name of the mailbox you want to modify.
.PARAMETER UseDatabaseDefaults
This switch will set the specified mailboxes to use the default quotas
configured on the mailbox database on which they are hosted.
.PARAMETER IncreaseByPercentage
This parameter allows you to specify the percentage by which existing
quota values on a mailbox should be increased. If the mailbox is currently
using the default database quota levels the increase will be based off
those values.
If any of the three quota settings are set to "Unlimited" then this
parameter will not make any changes to the mailbox.
.PARAMETER DecreaseByPercentage
This parameter allows you to specify the percentage by which existing
quota values on a mailbox should be decreased. If the mailbox is currently
using the default database quota levels the increase will be based off
those values.
If any of the three quota settings are set to "Unlimited" then this
parameter will not make any changes to the mailbox.
.EXAMPLE
.Set-MailboxQuota.ps1 -Mailbox Adam.Wally -UseDatabaseDefaults
The mailbox user Adam.Wally will be configured to use the quota
values configured on the mailbox database on which they are hosted.
.EXAMPLE
.Set-MailboxQuota.ps1 -Mailbox Adam.Wally -IncreaseByPercentage 5
The mailbox user Adam.Wally will have their mailbox quota values
increased by 5 percent.
.EXAMPLE
Get-Mailbox -Database DB04 | .Set-MailboxQuota.ps1 -UseDatabaseDefaults
All mailboxes hosted on database DB04 will be configured to use the
default database quota values.
Change Log
V1.00, 23/10/2015 - Initial version
#>
[CmdletBinding()]
param (
[Parameter( ParameterSetName='Increase' )]
[int]$IncreaseByPercentage,
[Parameter( ParameterSetName='Decrease' )]
[int]$DecreaseByPercentage,
[Parameter( ParameterSetName='UseDefaults' )]
[switch]$UseDatabaseDefaults,
[Parameter( ValueFromPipeline=$True, Mandatory=$true)]
[string[]]$Mailbox
)
#...................................
# Script
#...................................
Begin {
#...................................
# Functions
#...................................
Function Convert-QuotaStringToKB() {
Param([string]$CurrentQuota)
[string]$CurrentQuota = ($CurrentQuota.Split("("))[1]
[string]$CurrentQuota = ($CurrentQuota.Split(" bytes)"))[0]
$CurrentQuota = $CurrentQuota.Replace(",","")
[int]$CurrentQuotaInKB = "{0:F0}" -f ($CurrentQuota/1024)
return $CurrentQuotaInKB
}
}
Process {
foreach ($i in $mailbox)
{
$UnlimitedWarning = $null
$UnlimitedSend = $null
$UnlimitedSendReceive = $null
#Verify mailbox exists
try
{
$mbx = Get-Mailbox $i -ErrorAction STOP
#Current mailbox quota details
Write-Host "----------------------------------------" -ForegroundColor White
Write-Host "Mailbox: $mbx" -ForegroundColor White
Write-Host "----------------------------------------" -ForegroundColor White
Write-Host ""
Write-Host "Uses Database Defaults: $($mbx.UseDatabaseQuotaDefaults)"
Write-Host ""
if ($mbx.UseDatabaseQuotaDefaults)
{
$quotas = @(Get-MailboxDatabase $mbx.Database | Select IssueWarningQuota,ProhibitSendQuota,ProhibitSendReceiveQuota)
Write-Host "Warning Quota: $($quotas.IssueWarningQuota)"
Write-Host "Prohibit Send Quota: $($quotas.ProhibitSendQuota)"
Write-Host "Prohibit Send/Receive Quota: $($quotas.ProhibitSendReceiveQuota)"
Write-Host ""
[string]$strIssueWarningQuota = $quotas.IssueWarningQuota.ToString()
[string]$strProhibitSendQuota = $quotas.ProhibitSendQuota.ToString()
[string]$strProhibitSendReceiveQuota = $quotas.ProhibitSendReceiveQuota.ToString()
if ($strIssueWarningQuota -ne "Unlimited")
{
$CurrentIssueWarningQuotaInKB = Convert-QuotaStringToKB $strIssueWarningQuota
}
else
{
$UnlimitedWarning = $true
}
if ($strProhibitSendQuota -ne "Unlimited")
{
$CurrentProhibitSendQuotaInKB = Convert-QuotaStringToKB $strProhibitSendQuota
}
else
{
$UnlimitedSend = $true
}
if ($strProhibitSendReceiveQuota -ne "Unlimited")
{
$CurrentProhibitSendReceiveQuotaInKB = Convert-QuotaStringToKB $strProhibitSendReceiveQuota
}
else
{
$UnlimitedSendReceive = $true
}
}
else
{
Write-Host "Warning Quota: $($mbx.IssueWarningQuota)"
Write-Host "Prohibit Send Quota: $($mbx.ProhibitSendQuota)"
Write-Host "Prohibit Send/Receive Quota: $($mbx.ProhibitSendReceiveQuota)"
Write-Host ""
if ($($mbx.IssueWarningQuota) -ne "Unlimited")
{
$CurrentIssueWarningQuotaInKB = $mbx.IssueWarningQuota.Value.ToKB()
}
else
{
$UnlimitedWarning = $true
}
if ($($mbx.ProbibitSendQuota) -ne "Unlimited")
{
$CurrentProhibitSendQuotaInKB = $mbx.ProhibitSendQuota.Value.ToKB()
}
else
{
$UnlimitedSend = $true
}
if ($($mbx.ProhibitSendReceiveQuota) -ne "Unlimited")
{
$CurrentProhibitSendReceiveQuotaInKB = $mbx.ProhibitSendReceiveQuota.Value.ToKB()
}
else
{
$UnlimitedSendReceive = $true
}
}
#Process UseDatabaseDefaults scenario
if ($UseDatabaseDefaults)
{
if ($mbx.UseDatabaseQuotaDefaults)
{
Write-Host "$mbx already uses database quota defaults, no change required." -ForegroundColor White
}
else
{
try
{
Set-Mailbox $mbx -UseDatabaseQuotaDefaults:$true -ErrorAction STOP
Write-Host "$mbx has been configured to use database quota defaults." -ForegroundColor White
}
catch
{
Write-Warning $_.Exception.Message
}
}
}
#Process Increase Scenario
if ($IncreaseByPercentage)
{
Write-Host "Calculating new quotas" -ForegroundColor White
if ($UnlimitedWarning -eq $true)
{
Write-Host "Warning quota is unlimited and mailbox will not be modified."
}
else
{
Write-Host "Current warning quota: $CurrentIssueWarningQuotaInKB KB"
$NewIssueWarningQuotaInKB = $CurrentIssueWarningQuotaInKB + ($CurrentIssueWarningQuotaInKB * $IncreaseByPercentage)/100
Write-Host "New warning quota: $NewIssueWarningQuotaInKB KB"
}
if ($UnlimitedSend -eq $true)
{
Write-Host "Send quota is unlimited and mailbox will not be modified."
}
else
{
Write-Host "Current send quota: $CurrentProhibitSendQuotaInKB KB"
$NewProhibitSendQuotaInKB = $CurrentProhibitSendQuotaInKB + ($CurrentProhibitSendQuotaInKB * $IncreaseByPercentage)/100
Write-Host "New send quota: $NewProhibitSendQuotaInKB KB"
}
if ($UnlimitedSendReceive -eq $true)
{
Write-Host "Send/Receive quota is unlimited and mailbox will not be modified."
}
else
{
Write-Host "Current send/rec quota: $CurrentProhibitSendReceiveQuotaInKB KB"
$NewProhibitSendReceiveQuotaInKB = $CurrentProhibitSendReceiveQuotaInKB + ($CurrentProhibitSendReceiveQuotaInKB * $IncreaseByPercentage)/100
Write-Host "New send/rec quota: $NewProhibitSendReceiveQuotaInKB KB"
}
}
#Process Decrease Scenario
if ($DecreaseByPercentage)
{
Write-Host "Calculating new quotas in KB" -ForegroundColor White
if ($UnlimitedWarning -eq $true)
{
Write-Host "Warning quota is unlimited and mailbox will not be modified."
}
else
{
Write-Host "Current warning quota: $CurrentIssueWarningQuotaInKB KB"
$NewIssueWarningQuotaInKB = $CurrentIssueWarningQuotaInKB - ($CurrentIssueWarningQuotaInKB * $DecreaseByPercentage)/100
Write-Host "New warning quota: $NewIssueWarningQuotaInKB KB"
}
if ($UnlimitedSend -eq $true)
{
Write-Host "Send quota is unlimited and mailbox will not be modified."
}
else
{
Write-Host "Current send quota: $CurrentProhibitSendQuotaInKB KB"
$NewProhibitSendQuotaInKB = $CurrentProhibitSendQuotaInKB - ($CurrentProhibitSendQuotaInKB * $DecreaseByPercentage)/100
Write-Host "New send quota: $NewProhibitSendQuotaInKB KB"
}
if ($UnlimitedSendReceive -eq $true)
{
Write-Host "Send/Receive quota is unlimited and mailbox will not be modified."
}
else
{
Write-Host "Current send/rec quota: $CurrentProhibitSendReceiveQuotaInKB KB"
$NewProhibitSendReceiveQuotaInKB = $CurrentProhibitSendReceiveQuotaInKB - ($CurrentProhibitSendReceiveQuotaInKB * $DecreaseByPercentage)/100
Write-Host "New send/rec quota: $NewProhibitSendReceiveQuotaInKB KB"
}
}
#If either Increase or Decrease scenario, set the new quota values
if (!($UseDatabaseDefaults))
{
if ($UnlimitedWarning -eq $true -or $UnlimitedSend -eq $true -or $UnlimitedSendReceive -eq $true)
{
Write-Host "One or more quota values are set to unlimited, mailbox will not be modified." -ForegroundColor White
}
else
{
try
{
Write-Host "Setting new quotas" -ForegroundColor White
if ($mbx.UseDatabaseQuotaDefaults)
{
Set-Mailbox $mbx -UseDatabaseQuotaDefaults $false -IssueWarningQuota "$($NewIssueWarningQuotaInKB)KB" -ProhibitSendQuota "$($NewProhibitSendQuotaInKB)KB" -ProhibitSendReceiveQuota "$($NewProhibitSendReceiveQuotaInKB)KB" -ErrorAction STOP
}
else
{
Set-Mailbox $mbx -IssueWarningQuota "$($NewIssueWarningQuotaInKB)KB" -ProhibitSendQuota "$($NewProhibitSendQuotaInKB)KB" -ProhibitSendReceiveQuota "$($NewProhibitSendReceiveQuotaInKB)KB" -ErrorAction STOP
}
if ($IncreaseByPercentage)
{
Write-Host "Quotas increased by $IncreaseByPercentage percent"
}
if ($DecreaseByPercentage)
{
Write-Host "Quotas decreased by $DecreaseByPercentage percent"
}
}
catch
{
Write-Warning $_.Exception.Message
}
}
}
Write-Host "----------------------------------------" -ForegroundColor White
Write-Host ""
}
catch
{
#Mailbox was not found
Write-Warning $_.Exception.Message
}
}
}
End {
}
#...................................
# Finished
#...................................Configuring Witness Server in Exchange Server
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