User Manual

Office 365 Migration FAQ's


  1. Why do I need EdbMails Office 365 Migration?

    With EdbMails for Office 365 migration, you can achieve significant cost and time savings as it allows you to directly migrate all your data securely from Live Exchange server to Office 365

    Migrate Exchange Server versions 2003, 2007, 2010, 2013, 2016 or 2019 to your Office 365 tenant
    Support for Public folder migrations
    Migrate between different Office 365 tenants
    Simple and straightforward GUI (no PowerShell cmdlets are required);

  2. How does EdbMails Office 365 migration work?

    EdbMails Office 365 migration works by accessing the data in the source Live Exchange server and then migrating all this data to your Office 365 user account by making use of impersonation rights granted to a user in both the source server and target Office 365 account.

  3. Is migration between two different Office 365 tenants possible?

    Yes, EdbMails supports seamless migration between different Office 365 tenants which can be extremely useful for organizations in scenarios like mergers.

  4. Does EdbMails support migrations from Hosted Exchange Server?

    Yes, It does. With EdbMails, you can migrate all the mailbox data from your hosted exchange platform (eg: Rack space and GoDaddy etc) to Office 365 tenant flawlessly.

  5. Does EdbMails store entire mailbox data on my local computer for incremental migration?

    No. EdbMails keeps certain metadata details (not the entire mailbox details) on your computer in encrypted format.

  6. EdbMails Offers are very competitive and economical. What about EdbMails performance and reliability when compared to other competitors?

    EdbMails is a user-friendly and most reliable migration application compared to any competitors. EdbMails application is being used by users from more than 150 countries. EdbMails ensures no server downtime during migration, by keeping high performance under every scenario. Your migration data is 1:1 copy of the source, by retaining original folder structure intact.

    EdbMails does complete migration and we ensure 100% data is migrated. EdbMails migrations are safe and secured as it follows Microsoft recommended flow for migration.

    For Instance:

    1. Most of the applications fail to migrate if data is not Mime compatible. For this, they will ask you to use Outlook application to migrate the missing data one by one. This is an impossible situation when you have millions of records from 100s of mailboxes. But EdbMails handles Mime and other compatibility issues and it does migration without any manual work.

    2. You can do your Migration by yourself using EdbMails as it is one of the most user-friendly application for migration

    3. Entire data migration details are recorded (log), to keep the details available to you open.

  7. Are all languages supported by EdbMails?

    Yes, EdbMails comes with built-in support for all languages and can also migrate special characters. Thus no matter which language your source and destination servers are in, EdbMails can perform the migration effortlessly.

  8. Is there any size or speed limits for the migration?

    No, EdbMails doesn’t have any size or speed restrictions for migration to Office 365. However keep in mind that Microsoft EWS api can limit the migration concurrency (default : 3) or size of the mailboxes (default : 25 mb) that can be uploaded. Other factors that affect speed include type of data being migrated, hardware configuration of the source server, throttling policies of the source server.

  9. Is there a support for Multi-Factor Authentication in Office 365?

    Yes, EdbMails Office 365 migration tool has support for Office 365 Multi Factor Authentication or MFA. All the data from Office 365 tenant can be migrated to your MFA enabled Office 365 account using the app-password for authentication.

  10. Does EdbMails support mapping of source and target mailboxes?

    Yes, EdbMails Office 365 migration tool supports mapping of source mailboxes to required target mailboxes of the user’s choice. For this, select the appropriate mailbox from the list of mailboxes / folders that are selected for migration and choose target mailbox from the right pane as shown in the below screen.


  11. Does EdbMails Office 365 migration support Public folders?

    Yes, EdbMails supports Public folders to Office 365 migration. The Public folder structure from the source server is exactly reproduced in your target Office 365 tenant. All you have to do is create a public folder in Office 365 and assign a Office 365 user to it, EdbMails will handle the rest.

    Click here to create public folders in Office 365.

Migration Free trial / Demo

  1. How to run EdbMails demo / trial version for a quick test / review?

    You can run EdbMails demo / trial version for a quick test / review using 2 easy steps:

    Step 1: Download and install the EdbMails application
    Step 2: Click the "Start Your Free Trial" button as shown in the below screenshot

    Demo login EdbMails

  2. How fast I will receive the KEY after purchasing EdbMails license?

    EdbMails does not require any separate KEY to use the application after purchasing the license. That is, your account will be automatically upgraded to the type of the license that you have purchased. You need to download and install the application and login using the EdbMails account credentials (E-mail Address and password) that you have created during license purchase.

  3. Can I test all the features of EdbMails Exchange Migration before buying it?

    Yes. You can run EdbMails demo / trial version for a quick test / review using 2 easy steps:

    Step 1: Download and install the EdbMails application
    Step 2: Click the "Start Your Free Trial" button as shown in the below screenshot

    Free Trial

    Demo / Free trial will migrate 30 items from each and every folder maintaining the exact source server folder hierarchy. You can Migrate 30 items from each and every folders from your Live Exchange server to other Live Exchange Server / Office 365.

    This means that, if you’re using it to migrate e.g. a user’s mailbox, only 30 emails from each mail folder, 30 calendar items from each calendar, 30 contacts from every contacts folder, etc. will be migrated.

    Later you can purchase the license for full version of Office 365 Migration tool; you can resume the migration and move all remaining items incrementally.

  4. What if I encounter an error?

    For any queries about using the EdbMails Office 365 Migration tool, please refer to our FAQ page which contains commonly asked questions and their solutions. However if the FAQ doesn’t answer your query or solve your issue, you can contact our Technical support team via email, Live chat or phone 24x7 on all days.

Migration License

  1. I have purchased 100 user licenses for Migration. How does the license work?

    EdbMails only counts source mailboxes that are actually considered for migration.

    For Instance:

    If you migrate above 3 mailboxes to any destination mailboxes (with different domains) for any number of times (for lifetime), EdbMails only counts number of mailboxes used as 3.

    You can directly view number of mailboxes that are already used. Click here to know more

  2. How is EdbMails Office 365 migration licensed?

    EdbMails is licensed per mailbox for Office 365 migration.

    For example, if you have purchased license for migrating 100 mailboxes and migrated only 50 to Office 365, you can still use the 50 slots you have left to migrate from Office 365 to Office 365 tenant or Live Exchange Server

  3. How does EdbMails Office 365 to Office 365 / Live Exchange migration license works?

    Office 365 to Office 365 / Live Exchange migration license works based on how many mailboxes you want to migrate. That is, if you want to migrate 200 Mailboxes to a different domain then you just need 200 Mailboxes license. And you can use this license to migrate same mailboxes repeatedly for lifetime.

  4. How can I know the licensed mailboxes used for migration?

    In the Office 365 Migration screen, Click on the button 'Get Details'


    You get a list of Mailboxes that are already used for migration. Also you have search option to search the mailbox you are looking for.


  5. No, The basic license will support Contact, Calendar, Task, Mail, Public Folders / Archive Folder migration as well.

Before Migration

  1. How to Create the Public Folders in Office 365 for a new organization?

  2. Can the application migrate encrypted emails?

    Yes, EdbMails can easily migrate encrypted emails from the source exchange server to your Office 365 user account same as it would migrate normal emails. You can find all your encrypted emails in the Office 365 mailbox after migration.

  3. Standard folders (such as Inbox, Calendar, Contact etc.,) on my source Office 365 mailboxes are initialized with different language. How do I migrate these folders by mapping the respective system folders on target (destination) server?

    For Instance: Your source Inbox folder is named 'Boîte de réception', which is in French language. If you migrate this folder directly to the destination server then by default it will not get mapped to the 'Inbox' folder on target server. In order to map this to the respective folder, change the regional settings on Office 365 target server to that of your source mailbox folder language (in this case, it is French).
    Click here to know the steps to change the language and regional settings on Office 365 server
    Click here to know the steps to change the language and regional settings on Exchange server

  4. EdbMails does Incremental Migration. Is there a need to migrate a particular mailbox from the same computer during consecutive migration for the incremental check to be effective?

    To verify the already migrated data, EdbMails keeps certain metadata details (not the entire mailbox details) on your computer in encrypted format. This metadata details are used for incremental check during migration. Hence, once you migrate a mailbox from a particular computer, during consecutive migration use the same computer to avoid duplicates. However, other Mailboxes that are not been migrated from this computer can be migrated from any other computer in parallel.

    Click here to know more on Incremental Migration

  5. What types of data can EdbMails Office 365 tool migrate?

    EdbMails Office 365 migration tool can migrate all emails, journals, tasks, calendar, contacts, notes, public folder, archive folder, permissions from the source server to target Office 365 tenant.

  6. Is it necessary to install EdbMails on the source server?

    No, You can install EdbMails on any computer that can access the source server for migration to Office 365.

  7. Is the data on source server affected in anyway when using EdbMails Office 365 migration tool?

    No, EdbMails does not alter the data in the source server in anyway. It will read source Office 365 tenant data and migrate it to target server.

Migration - Steps

  1. How to perform Office 365 Migration?

After Migration

  1. How to recreate Outlook profiles after the migration?

  2. Does EdbMails support migration from a hybrid environment?

    Yes, EdbMails supports migration from hybrid environments to Office 365.

  3. Can I continue using the Source mailboxes after migration?

    Yes, the source mailboxes can still be used as EdbMails does not alter the contents of these mailboxes during migration. You can even migrate just the new items that are created in the source server to Office 365 using EdbMails incremental migration without having to re do the full migration again.

  4. After my initial migration, I have new emails in my source Office 365 tenant. How do I migrate them again without duplicates?

    EdbMails supports incremental migration wherein, it will only migrate the new items that are created in the source Office 365 tenant after the first full migration without creating any duplicate data on target server.

    In addition, to avoid complete re-scanning of the source mailboxes, you can apply the filter and include items based on your last migration date. You can access the include / exclude option under the 'Settings' menu as shown below.

    Filter Settings Menu
    Filter Settings