Command

Export-MailboxMappings

Description

This command gets all the mailboxes from the source tenant and generates a CSV file with the result. It then tries to find a matching mailbox in the destination tenant. If it finds a match, it adds the matching mailbox next to the source mailbox in the CSV file. Other mailboxes will be left blank and will need to be matched manually. Review the results to ensure accuracy.

Examples

Create a mapping file for source and destination tenants.

$source = Connect-MicrosoftOnline
$destination = Connect-MicrosoftOnline
Export-MailboxMappings -SourceConnection $source -DestinationConnection $destination -Path "C:\MyMappings\"

Syntax

Export-MailboxMappings
-SourceConnection <Connection>
-DestinationConnection <Connection>
[-Path <FileInfo>]
[-Overwrite]

Parameters

-DestinationConnection <Connection>

Specifies the destination connection.

Required?	True
Default value	None
Accept pipeline input?	False
Accept wildcard characters?	False
Parameter set name	(All)
Aliases	None

-Overwrite <SwitchParameter>

Specifies that file will be overwritten if already exist.

Required?	False
Default value	None
Accept pipeline input?	False
Accept wildcard characters?	False
Parameter set name	(All)
Aliases	None

-Path <FileInfo>

Specifies the path where you want to save the file. Supported format is CSV.

Required?	False
Default value	None
Accept pipeline input?	False
Accept wildcard characters?	False
Parameter set name	(All)
Aliases	None

-SourceConnection <Connection>

Specifies the source connection.

Required?	True
Default value	None
Accept pipeline input?	False
Accept wildcard characters?	False
Parameter set name	(All)
Aliases	None