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SYNOPSIS

Set maximum mailbox size for specified mailboxes.

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SYNTAX

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Identity

Set-ExMailboxMaxSize -Identity <String[]> [-GenerateCmdlets] [-OutputFile <String>]
 [-ProgressAction <ActionPreference>] [-WhatIf] [-Confirm] [<CommonParameters>]

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ByDomain

Set-ExMailboxMaxSize -ByDomain <String> [-GenerateCmdlets] [-OutputFile <String>]
 [-ProgressAction <ActionPreference>] [-WhatIf] [-Confirm] [<CommonParameters>]

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FromCSV

Set-ExMailboxMaxSize -FromCSV <String> [-GenerateCmdlets] [-OutputFile <String>]
 [-ProgressAction <ActionPreference>] [-WhatIf] [-Confirm] [<CommonParameters>]

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AllMailboxes

Set-ExMailboxMaxSize [-AllMailboxes] [-GenerateCmdlets] [-OutputFile <String>]
 [-ProgressAction <ActionPreference>] [-WhatIf] [-Confirm] [<CommonParameters>]

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DESCRIPTION

This function sets the maximum mailbox size (MaxReceiveSize and MaxSendSize) for Exchange Online mailboxes. It can target mailboxes by identity, by domain, from a CSV file, or all mailboxes in the organization.

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EXAMPLES

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EXAMPLE 1

Set-ExMailboxMaxSize -Identity "user@example.com" -MaxReceiveSize 150MB -MaxSendSize 150MB
Sets the maximum mailbox size for the specified mailbox.

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EXAMPLE 2

Set-ExMailboxMaxSize -ByDomain "example.com"
Sets the maximum mailbox size for all mailboxes in the specified domain.

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EXAMPLE 3

Set-ExMailboxMaxSize -AllMailboxes
Sets the maximum mailbox size for all mailboxes in the organization.

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EXAMPLE 4

Set-ExMailboxMaxSize -FromCSV "C:\path\to\file.csv"
Sets the maximum mailbox size for mailboxes listed in the specified CSV file.

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EXAMPLE 5

Set-ExMailboxMaxSize -ByDomain "example.com" -GenerateCmdlets -OutputFile "C:\path\to\commands.ps1"
Generates the Set-Mailbox cmdlets for all mailboxes in the specified domain and saves them to the specified file without executing them.

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PARAMETERS

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-Identity

The identity of the mailbox(es) to set the maximum size for. This can be an array of email addresses, usernames, or display names. 
Type: String[]
Parameter Sets: Identity
Aliases:

Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

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-ByDomain

Filter mailboxes by domain name. All mailboxes with a primary SMTP address in this domain will be processed. 
Type: String
Parameter Sets: ByDomain
Aliases:

Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

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-FromCSV

The path to a CSV file containing mailbox identities to process. 
Type: String
Parameter Sets: FromCSV
Aliases:

Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

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-AllMailboxes

If specified, all mailboxes in the organization will be processed. 
Type: SwitchParameter
Parameter Sets: AllMailboxes
Aliases:

Required: True
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

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-GenerateCmdlets

If specified, the function will generate the Set-Mailbox cmdlets and save them to a file instead of executing them. 
Type: SwitchParameter
Parameter Sets: (All)
Aliases:

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

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-OutputFile

The path to the output file where generated cmdlets will be saved. Default is a timestamped file in the current directory. 
Type: String
Parameter Sets: (All)
Aliases:

Required: False
Position: Named
Default value: "$(Get-Date -Format 'yyyy-MM-dd_HHmmss')-SetExMailboxMaxSize-Commands.ps1"
Accept pipeline input: False
Accept wildcard characters: False

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-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run. 
Type: SwitchParameter
Parameter Sets: (All)
Aliases: wi

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

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-Confirm

Prompts you for confirmation before running the cmdlet. 
Type: SwitchParameter
Parameter Sets: (All)
Aliases: cf

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

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-ProgressAction

{{ Fill ProgressAction Description }} 
Type: ActionPreference
Parameter Sets: (All)
Aliases: proga

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

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CommonParameters

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.

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INPUTS

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OUTPUTS

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NOTES