As a component of the way toward sending Office setup 365, you can move the substance of client letter boxes from an Internet Mail Access Protocol (IMAP) email administration to Office 365.
How to Migrate IMAP Mailboxes to Office 365?
The Process to Migrate IMAP Mailboxes to Office 365 is given here :
Connect Office 365 to your email system
Route your email directly to Office 365
Office 365 needs the name of the source email system, sometimes referred to as a server, from which you want to migrate mailboxes.
In Outlook Web App, on the toolbar click Settings > Options > Mail > Accounts > POP and IMAP. Below your account information, you’ll see a link that says Settings for POP and IMAP access.
Get your Office 365 Setup here : office.com/setup
When you create the migration file, you must know the password of each mailbox to be migrated. We’re assuming you don’t know user passwords, so you’ll probably need to assign temporary passwords to all mailboxes during the migration.
Go to your source email system (the one you’re migrating from), and navigate to the list of mailboxes you want to migrate.
Go to the Office 365 admin center.
Navigate to Users > Active users. Keep an eye on the User name column.
Use the following screenshot as a template to create the migration file in Excel. Start with the headings in row 1. Make sure they match the picture exactly and don’t contain spaces.
Enter the email address, user name, and password for each mailbox you want to migrate.
Reset the passwords, and note the new passwords in your migration file.
Save the file as a CSV file type, and close Excel.
For more details, visit : www.office.com/setup