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New-MailboxExportRequest Alternate 2010 Could not Connect with The Supply Mailbox

Question: “Are you making an attempt to export major mailbox information from Alternate to archive Outlook PST file format utilizing New-MailboxExportRequest command and getting Alternate new-mailboxexportrequest could not hook up with the supply mailbox concern? So, let’s know the right way to repair new-mailboxexportrequest failed error in a correct means. The beneath answer is relevant to Alternate Server 2019, 2016, 2013 and 2010.”

The MS Alternate Server has a characteristic to export the contents of a major mailbox or archive to a PST file with the assistance of New-MailboxExportRequest cmdlet. Person can create multiple mailbox export request per mailbox and every mailbox export request ought to have a novel identify.

There’s additionally an choice to take away current export request by utilizing the Take away-MailboxExportRequest cmdlet offered by the Alternate Server. Generally, consumer could have concern whereas making an attempt to make use of the New-MailboxExportRequest and should get error that it couldn’t hook up with the supply mailbox. The weblog might be discussing concerning the answer on how we are able to repair the identical concern and use New-MailboxExportRequest characteristic successfully.

Notice: Person can Export the Alternate mailbox to PST by utilizing the automated wizard offered by SysTools i.e. Alternate Export Instrument. This utility is succesful sufficient to export a number of Alternate mailboxes corresponding to: exclude dumpster, disconnected, enabled, disabled, journal, hosted, corrupt from Stay Alternate Server (2016/2013/2010/2007/2003) to the Outlook information file in a problem free means. 
If you’re new to the Microsoft Alternate Server setting and doesn’t know the right way to create PST file from from Alternate Server, then use can use this skilled software program to make the Outlook information file from MS Alternate in a simplified means.  

New-MailboxExportRequest Alternate 2010 Could not Connect with The Supply Mailbox – Error

The consumer of Alternate Server could not be capable to use the characteristic to export the contents of a major mailbox to an Outlook PST file utilizing New-MailboxExportRequest. Attributable to some points, consumer could not be capable to export Alternate mailbox to PST file utilizing New-MailboxExportRequest and displaying the next error “Alternate 2010 mailbox export couldn’t hook up with the supply mailbox.” The next command might be entered to export the content material of mailbox to a desired PST file:

New-MailboxExportRequest–Mailbox USERID–FilePathSERVERNAME

For exporting a mailbox, we’ll use New-MailboxExportRequest command with the Mailbox parameter, to specify the mailbox from the place the contents must be exported together with the FilePath parameter, and outline the specified PST file to create and export information to.

With the intention to get extra data, we are able to add “-Verbose” to the above command like:


Notice:Earlier than going for any answer first strive login to account utilizing OWA. If you cannot login to account then first resolve this error after which attempt to Export Mailbox. If you’ll be able to login to OWA and nonetheless getting error “Alternate Could not hook up with the Supply Mailbox” when making an attempt to run New-MailboxExportRequest command then it’s important to go to the beneath answer.

The way to Repair New-MailboxExportRequest command and getting Alternate new-mailboxexportrequest could not hook up with the supply mailbox Concern

A lot of the drawback with Export-Mailbox confronted by Alternate Directors is related to MAPI protocol. This protocol permits the entry to a Microsoft Alternate Mailbox from a MAPI consumer like Microsoft Outlook. 

Due to this fact, the very first thing to do is to test if the MAPI protocol is enabled or not as it’s the core protocol that’s wanted for connecting to Outlook.  If the consumer desires to export the Alternate (2019, 2016, 2013 and 2010) consumer mailbox whereas it’s on-line, consumer must test the MAPIBlockOutlookNonCachedMode characteristic. 

Following are the steps to repair the problem associated to New-MailboxExportRequest could not hook up with the supply mailbox.

  • To see if the MAPI mode is enabled or not, we have to test the Consumer Entry Server mailbox standing of the consumer. For this, the next command can be utilized.
    Get-CASMailbox –Determine consumer identify We’ll decide the MAPI standing whether it is true or false.
    Alternatively, we are able to test the properties of the mailbox to see if MAPI is enabled or not.
Mailbox Properties
  • Even when the MAPI mode was True, we’ll cease it and set it as false utilizing the command given beneath.
  • Set-CASMailbox ID –MAPIBlockOutlookNonCachedMode:$false

  • Once more, we have to allow it, as MAPI protocol is important for exporting the contents of Mailbox to Outlook PST file utilizing the command: Set-CASMailbox ID –MAPIBlockOutlookNonCachedMode:$True
  • Now we’ll run the identical command for exporting the Alternate mailbox information to Outlook PST file utilizing New-MailboxExportRequest with the command:
    New-MailboxExportRequest–Mailbox USERID– FilePathSERVERNAME

  • After restarting the MAPI protocol possibility, we are able to see that we’re in a position to export the mailbox objects from Alternate Server to Outlook PST file and the error for not with the ability to hook up with the supply mailbox will not be encountered anymore.
Notice: The New-MailboxExportRequest Alternate PowerShell cmdlet solely export the content material major and archive mailbox solely from on-premise Alternate and many of the customers are having dismounted or offline Alternate database file and this guide answer can’t carry out this conversion. So, on this case, customers can use the superior SysTools EDB Converter Instrument which helps these .edb information (Public & Non-public) and utilized by many IT professionals, Alternate in addition to novice customers to transfer Alternate database to PST and different file codecs with out utilizing any command in a simplified method. By default, it creates UNICODE PST file.
edb file converter


When customers attempt to export EDB mailbox to PST utilizing PowerShell cmdlet Alternate 2010 utilizing New-MailboxExportRequest cmdlet, then they face the New-MailboxExportRequest Alternate 2010 could not hook up with the supply mailbox is mostly displayed. The weblog focuses on the identical error and the answer on how we are able to repair it. The MAPI protocol must be enabled in an effort to give entry to the MS Alternate mailbox from a MAPI consumer like MS Outlook. Even when the protocol was already enabled, the answer suggests that we are going to disable the MAPI mode once more and allow it later for efficiently exporting the mailbox to Outlook PST file. If customers discover any issue once more whereas exporting the Alternate database mailboxes then it’s strongly advisable to make use of the superior software program i.e. Alternate Export Instrument offered above. Within the subsequent article, we talk about how we are able to restore alternate mailbox once more in to the database utilizing PowerShell instructions.



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