Ways to migrate multiple email accounts to Office 365

How to migrate to Office 365

office 365

Your organization can migrate email to Office 365 from other systems. Your administrators can Migrate mailboxes from Exchange Server or Migrate email from another IMAP-enabled email system. And your users can Have users import their own email their own email, contacts, and other mailbox information to an Office 365 mailbox created for them. Your organization also can Work with a partner to migrate email to migrate email.

What you need to know before migration to Office 365?

Before you start an email migration, review limits and best practices for Exchange Online to make sure you get the performance and behavior you expect after migration.

Migrate mailboxes from Exchange Server

office 365 migration pic

For migrations from an existing on-premises Exchange Server environment, an administrator can migrate all email, calendar, and contacts from user mailboxes to Office 365.

There are three types of email migrations that can be made from an Exchange Server:

  • Migrate all mailboxes at once (cutover migration) or Express migration

    Use this type of migration if you’re running Exchange 2003, Exchange 2007, Exchange 2010, or Exchange 2013, and if there are fewer than 2000 mailboxes. You can perform a cutover migration by starting from the Exchange admin center (EAC); see Perform a cutover migration to Office 365. See Use express migration to migrate Exchange mailboxes to Office 365 to use the Express migration.

  • Migrate mailboxes in batches (staged migration)

    Use this type of migration if you’re running Exchange 2003 or Exchange 2007, and there are more than 2,000 mailboxes. For an overview of staged migration, see What you need to know about a staged email migration to Office 365. To perform the migration tasks, see Perform a staged migration of Exchange Server 2003 and Exchange 2007 to Office 365.

  • Migrate using an integrated Exchange Server and Office 365 environment (hybrid)

    Use this type of migration to maintain both on-premises and online mailboxes for your organization and to gradually migrate users and email to Office 365. Use this type of migration if:

    • You have Exchange 2010 and more than 150-2,000 mailboxes.
    • You have Exchange 2010 and want to migrate mailboxes in small batches over time.
    • You have Exchange 2013.

      For more information, see Plan an Exchange Online hybrid deployment in Office 365.

An administrator migrates PST files to Office 365.

Migrate email from another IMAP-enabled email system to Office 365

You can use the Internet Message Access Protocol (IMAP) to migrate user email from Gmail, Exchange, Outlook.com, and other email systems that support IMAP migration. When you migrate the user’s email by using IMAP migration, only the items in the users’ inbox or other mail folders are migrated. Contacts, calendar items, and tasks can’t be migrated with IMAP, but they can be by a user.

IMAP migration also doesn’t create mailboxes in Office 365. You’ll have to create a mailbox for each user before you migrate their email.

An administrator performs an IMAP migration to Office 365. All email, but not contacts or calendar information, can be migrated for each mailbox.

To migrate email from another mail system, see Migrate your IMAP mailboxes to Office 365. After the email migration is done, any new mail sent to the source email isn’t migrated.

A user can import email, contacts, and calendar information to Office 365.

Work with a partner to migrate email

If none of the types of migrations described will work for your organization, consider working with a partner to migrate email to Office 365.

Method Description
Use third-party migration tools to migrate mailboxes to Office 365 Use a third-party email migration tool
Migration tools can help speed up and simplify email migration. You’ll find a list of tools in the Office 365 Marketplace.
Hire a partner to help you deploy Office 365 Hire a partner to help migrate your email
Call us at 1-866-808-7705


Following services are rolled into various Office 365 plans:

  • The entire suite of Office applications, including Word, PowerPoint, and Excel. These applications are available on Windows, macOS, Android, iOS and Windows phone.
  • Outlook is included too as an advance mailing solution to business professionals.
  • Various collaborations tools are included to make communication between parties for business easier. Some of them are OneDrive for Business, Microsoft Teams, and SharePoint Online.
  • Office 365 also provides cloud-based versions of its software using the SaaS model. Thus, many tools like Skype for Business and SharePoint could be used as web apps on the go.
  • Additionally, there is also cloud storage space on OneDrive for storing files in the cloud.
  • Taking the emphasis on communication further, an additional 60 minutes on Skype are included every month.
  • Office 365 also comes with Office 365 Education services, that consist of applications aimed at meeting educational needs. These include Office Live Workspace, Microsoft SharedView, and Windows Live SkyDrive.


You get what you pay for. You could subscribe to the following plans, either on a monthly or annual basis:

  • Office Online: The plan only gives you access to the cloud-hosted versions of software such as Office suite.
  • Office 365 Personal: The plan is aimed at a single casual user to meet his daily requirement. It includes Word, PowerPoint, OneNote, Publisher, Outlook, Access, and Excel. Also gives 1TB of OneDrive storage space and monthly 60 Skype minutes.
  • Office 365 University: Specifically aimed at students. It contains all the features of Office 365 Personal plan but at a reduced price.
  • Office 365 Home: The plan serves as a comprehensive solution to an entire household. It contains the same features as Office 365 Personal plan but can be shared by up to 5 people and 5 devices and tablets.
  • Office 365 Business Premium: Aimed at small and medium companies, the plan offers both web and desktop services. It contains Office suite and their online counterparts, along with hosted services like SharePoint, Exchange, and Lync.

LG Networks Inc. Office 365 Packages
Office 365 Business
Office 365 Business Essentials
Office 365 Business Premium
Office 365 ProPlus
Office 365 Enterprise E1
Office 365 Enterprise E3
Office 365 Enterprise E5

$8.25 per user per month
$5.00 per user per month
$12.50 per user per month
$12.00 per user per month
$8.00 per user per month
$20.00 per user per month
$35.00 per user per month
User maximum
Fully installed Office Applications Word, Excel, PowerPoint, Outlook, Publisher, and OneNote on up to 5 PCs or Macs per user
Office on tablets and phones for the fully installed Office experience on up to 5 tables and 5 phones per user
Online versions of Office including Word, Excel, and PowerPoint
File sharing and at least 1 TB OneDrive storage per user
Business class email, calendar, and contacts with a 50 GB inbox per user
Unlimited online meetings, IM, and audio, HD video, and web conferencing
Inform and engage employees with a SharePoint intranet, and connect teams to content, expertise, and processes with SharePoint team sites
Corporate social network to help employees collaborate across departments and locations
Work management tools to help teams create plans, organize, assign, and collaborate around tasks
Microsoft Teams chat-based workspace, with instant access to your chats, content, people, and tools
Professional digital storytelling tools to create interactive reports, presentations, and more
Personalized search and discovery across Office 365 using the Office Graph
Corporate video portal for uploading and sharing your corporate videos across the company
Meeting broadcast on the internet up to 10,000 people, who can attend in a browser on nearly any device
Enterprise management of apps with Group Policy, Telemetry, Shared Computer Activation
Self-service Business Intelligence to discover, analyze, and visualize data in Excel
Compliance solutions to support Data Governance, Auditing and eDiscovery, manual retention and deletion policies, mailbox and internal site search and legal hold capabilities depending upon subscription type
Information Protection including Rights Management and Data Loss Prevention for emails
Advanced eDiscovery with Predictive Coding and Text Analytics
Advanced Data Governance with intelligent insights for policy recommendations and classifications
Advanced Thread Protection helps defend your data against malware and viruses and safeguard your messaging system
Advanced Security Management provided enhanced visibility and control into your Office 365 environment
Analytics tools
PTSN conferencing
Cloud PBX for cloud-based call management
Microsoft StaffHub


Office 365 is a great solution not just for the brand name alone, but for the features it entails. The range of plans ensures that every kind of user is taken care of, while the services and applications fulfill almost every professional need of users. With automatic updates rolling out everyone in a while, Office 365 keep you in pace with the world.

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