EdbMails EDB Recovery and Migration software
  • Products
    Exchange EDB / Email Recovery Tools
    • EDB Recovery and MigrationRecover EDB to PST, EDB to Office 365 and Exchange NO Duplicate Migration
    • OST Recovery and MigrationRecover OST to PST, OST to Office 365 and Exchange Migration
    • PST Recovery and MigrationRecover Outlook PST, PST to Office 365 and Exchange Migration
    • MBOX Export and MigrationExport MBOX to PST, MBOX to Office 365 and Exchange Migration
    • NSF Export and MigrationExport NSF to PST, NSF to Office 365 and Exchange Migration
    • EML to PST ExportEML files export to Outlook PST format
    • PST to MSG ExportOutlook PST files export to MSG format
    • MSG to PST ExportExport MSG files Outlook PST files
    Exchange and Office 365 Migration
    • Exchange Server MigrationMigrate Exchange 2007, 2010, 2013, 2016, 2019 to Office 365 tenants. Also, migrate between Exchange servers and PST
    • Office 365 MigrationMigrate Source Office 365 tenants to Destination Office 365 tenants. Also, migrate to Exchange Server and PST
    • IMAP Email Backup & MigrationMigrate all IMAP email servers (Gmail, Zimbra, Zoho, Yahoo etc.), Office 365, Exchange and Backup to Outlook PST
    • SharePoint Online MigrationMigrate documents, files and folders from SharePoint sites
    • OneDrive for Business MigrationMigrate documents, files and folders from OneDrive
    • Microsoft Teams MigrationMigrate Teams, documents, files and folders etc.
    Exchange and Office 365 Backup
    • Office 365 BackupIncremental, Granular, Encrypted and Compressed Office 365 Mailboxes Backup
    • Exchange Server BackupIncremental, Granular, Encrypted and Compressed Exchange Mailboxes Backup
    • SharePoint, OneDrive & Teams BackupBackup Online site collections, Team sites, Office 365 groups, all documents etc.
    • Duplicate Remover - Office 365 & Exchange Remove duplicate emails, calendars, contacts, journal etc. from Office 365 and Exchange
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User’s Manual
Exchange Server Migration

User Manual

User Manual

  • Exchange Migration Overview
  • Initial Setup
  • System Requirements
  • Installation
    • Installation process
    • Reinstall or Upgrade
    • How to uninstall
    • Migration speed
  • FAQ
    • General
    • Migration Free Trial / Demo
    • Migration License
    • Before Migration
    • Migration - Steps
    • After Migration
  • Videos
    • Exchange to Exchange
    • Exchange to Office 365
    • Exchange to IMAP
    • Exchange to PST
    • Public Folder to Office 365
    • Archive Mailbox to Office 365
    • Public Folder to Exchange
    • Archive Mailbox to Exchange
    • Restore Bulk PST files to Exchange
  • Screenshots
    • Exchange to Exchange
    • Exchange to Office 365
    • Exchange to PST
  • How it works?
    • Exchange to Exchange
    • Exchange to Office 365
    • Exchange to PST
    • Exchange to IMAP
    • Exchange Public Folder to Office 365
    • Exchange Public Folder to Exchange
    • Exchange 2010 to 2016 Public folder
    • Exchange 2013 Public folder to Office 365
    • Exchange 2016 Public folder to Office 365
    • Exchange Public Folder to Shared Mailbox
    • Archive Mailbox to Office 365
    • Archive Mailbox to Exchange
    • Hosted Exchange Migration
    • Hosted Exchange to Live Exchange Migration
    • Hosted Exchange to Office 365 Migration
    • Live Exchange to Hosted Exchange Migration
    • Hosted Exchange Public Folder to Office 365 Migration
    • Cross-forest migration from Exchange 2013 to Exchange 2019/2016
    • Hybrid Migration
    • Public folder Migration in Hybrid Environment
    • Migrate GAL and all address list
    • Disable msExchMailboxGuid
    • Exchange to Gmail Migration
    • Multiple PST files to Exchange server
  • Connect to Exchange server for multiple mailboxes migration
    • Connect with Global Admin
    • Connect to Multiple users using CSV file
    • Connect using full access permission
    • Connect individual users for Single / Specific user Migration
  • Connect to Hosted Exchange for its Migration
    • Connect with Full Access permissions
    • Connect to multiple users using CSV file
    • Connect to Individual user for migration
  • Connect to Office 365
    • Modern Authentication Using OAuth 2.0
      • Microsoft 365 modern authentication
      • Automatic Registration
      • Manual Registration
    • Connect with Global Admin
    • Connect to Office 365 with full access permission
    • Connect to Office 365 with CSV file option
    • Connect to Office 365 as single user mailbox
  • Set Exchange Server Impersonation rights
    • Exchange 2007 and below
    • Exchange 2010, 2013, 2016 and 2019
    • Set using Exchange Server GUI
  • Knowledge Base
    • Exchange to Exchange Migration
    • Exchange to Office 365 Migration
    • Migrate Legacy Exchange to Latest Exchange
    • Cross-forest and cross-domain migration
    • Public folder, Shared mailbox migration
    • Archive mailbox migration
    • Hosted Exchange Migration
    • Incremental migration
    • Cutover, staged and hybrid migration
    • Migrate SBS 2003, 2008, 2011 to a Modern Exchange Environment
    • Export Exchange Mailbox to PST
    • Secure Exchange Migration
    • Selective Mailbox / Folder Migration
    • Automatic Mailbox Mapping
    • Assign Public Folder to one target destination
    • Multiple PST Restore
    • No Impact on users - Zero downtime
    • Migrate Email Rules, Forwarding and Junk Email Configuration
    • Exchange migration speed and throttling management
    • Support for all the languages
    • Advanced settings and options
    • GAL and all address lists Migration
    • Exchange migration reports
    • Best Exchange Migration software
    • Exchange migration checklist
    • Exchange migration manager
    • Feature rich Exchange migration software
    • Exchange to Office 365 migration planning
    • Exchange server migration tips
    • Export Exchange server users to CSV
  • Understanding the Application
    • Program's Component
    • Migration
    • Incremental Migration
    • Exchange Throttling Policy
  • Migration Types
    • Cutover Migration
    • Staged Migration
    • Hybrid Migration
  • Map the Mailboxes
  • Migration Walkthrough
    • From Exchange 2003
    • From Exchange 2007
    • From Exchange 2010 to Exchange 2019
    • From Exchange 2010 to Exchange 2016
    • From Exchange 2010 to Office 365
    • From Exchange 2013 to Exchange 2019
    • From Exchange 2013 to Exchange 2016
    • From Exchange 2013 to Office 365
    • From Exchange 2016 to Exchange 2019
    • From Exchange 2016 to Office 365
    • From Exchange 2019 to Office 365
    • From Office 365
    • Exchange 2013 mailbox to PST
    • Exchange 2016 mailbox to PST
    • Exchange 2019 mailbox to PST
    • Exchange 2010 mailbox to PST
  • Multifactor Authentication
    • Enable MFA in Office 365
    • Create App password for MFA
    • Disable Security Defaults
  1. Home
  2. Product
  3. Troubleshooting Common Migration Failures and Errors
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Troubleshooting Exchange server connection

Errors may encounter during migration even with the right approach. These may be due to insufficient permissions, invalid credentials, throttling issues etc. The solution for all these hiccups is of high priority.

  1. Source or Target Connection Failed to Respond

    Reason to failure:

    The source or target server did not respond for an extended period of time and does not return a folder set. This error message usually indicates a timeout error.

    • This error occurs due to a large mailbox, or a large folder associated with a user's mailbox.
    • The source or target server is too slow to respond due to large items count.
    • The server cannot access the mailbox due to intermittent network connection.
    Solution:

    Ensure that the server is up and running. Retry the migration with EdbMails Exchange or Office 365 migration software. The application migrates the data incrementally without any issues.

  2. The Server Cannot Service This Request Right Now

    Reason to failure:

    The Exchange Web Service (EWS) failed to access the mailboxes due to throttling limits imposed by Exchange.

    • This error occurs due to a large mailbox, or a large folder associated with a user's mailbox.
    • The source or target server is too slow to respond due to large items count.
    • The server cannot access the mailbox due to intermittent network connection.
    Solution:

    Verify, whether the error originated on the source or target server

    • If you perform migration to or from Exchange 2010 or later, you can disable the throttling policy within the system.
    • If you perform migration to or from Office 365, enable impersonation to minimize the throttling. You can migrate to the target by using a global admin account.
    • You can also contact Microsoft support to have the throttling disabled.
  3. The Remote Server Returned an Error: (404) Not Found

    Reason to failure:
    • The server failed to locate a file or resource.
    • The server is unable to connect to EWS within the environment and migrate the data to the target.
    Solution:
    • Use the appropriate URL to connect to EWS
    • The default URL for EWS is usually in the format https://mail.domain.com/EWS/Exchange.asmx
    • Perform this action from a non-domain joined computer having internet access.
    • When prompted, enter the appropriate credentials and you should see an XML document (WSDL)
    • If you have not correctly authenticated the Outlook Web App form, disable it and retry the operation.
    • Check that the IIS settings are correct. To correct the error, restart the process, return to the UI, and check the credentials again.
  4. SMTP address has no mailbox associated with it

    You may receive the error message during mailbox migrations to Office 365. EdbMails attempts to log in to the target server but cannot find the mailbox to which you want to migrate the data. This error prevents you from viewing the mailbox associated with the SMTP address you enter in EdbMails.

    • If you have not previously assigned a license in the admin portal, there will be no mailbox associated with that SMTP address.
    • EdbMails cannot migrate the data to the target mailbox that has not been provisioned.
    Solution:

    Sign in to the Office 365 admin portal and assign a suitable license to the user having the issue; After you assign the license, wait for the changes to take effect.

  5. Unable to Connect to the Remote Server

    A firewall blocks an external traffic that includes a connection from EdbMails.
    The Outlook Web Application (OWA) fails to load in time.

    Solution:

    If EdbMails application login fails, verify and allow the EdbMails IP, Port, and executable files in your Firewall. Click the following link to configure the Firewall settings. Check the network for overutilization. You could be migrating too many mailboxes over the network that require more bandwidth. To correct this error, migrate in smaller batches.

  6. This Account Lacks Permissions to Impersonate Requested User

    EdbMails fails to impersonate the user due to insufficient permissions on the Admin account.
    This error message appears when you try to impersonate the requested user with a global admin account during Office 365 migration. EdbMails automatically configures the impersonation rights. However, it may fail in some cases.

    Solution:

    Refer to the following link to set the impersonation rights for Office 365 using PowerShell commands / Office 365 GUI.

  7. 401 Unauthorized

    This error can occur if:

    • Your Office 365 account is locked or the password has expired
    • You enter invalid Admin account credentials in EdbMails
    • The administrator account has insufficient permissions for migration
    Solution:
    • Sign in to the Office 365 admin portal and unlock your account
    • Set a new password for your account
    • Reconnect to Office 365 with the admin account credentials by using EdbMails
    • Reset the proper permissions for the global admin account

    In case Multi factor authentication (MFA) is enabled in Office 365, see the following links to enable MFA and disable security defaults in Office 365.

    • Steps to Enable MFA and enforce access from other applications
    • Steps to disable Security Defaults in Office 365
  8. A Specified Object was not found in the store

    This error message occurs during Exchange migration, when EdbMails is unable to open the user's mailbox to migrate data. It may be due to a permission error over "full access" rights for the admin account.

    Solution:
    • Verify the permissions for the administrator account
    • Ensure that the mailbox is not hidden from the global address list
    • Ensure that the mailbox is not having a folder name with a backslash character. Replace the backslash with the dash character and perform re-migration.
    • If you are still facing the issue, contact EdbMails Technical support
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 In this manual

Connection FailedServer Cannot ServiceError 404 Not FoundSMTP addressUnable to Connect ServerAccount Lacks Permissions401 UnauthorizedSpecified Object not found

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