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Office 365 to Yahoo Mail Migration

Is your subscription for Office 365 expiring, and do you plan to switch to a less expensive solution, such as Yahoo Mail? Do you want to migrate your emails and sensitive data without losing access, structure and security? If that is the case, in this guide, we will show you a reliable and understandable process to migrate your Office 365 mailbox to Yahoo Mail.

Productivity Suite (Microsoft 365) is an ideal solution that provides functionalities such as Outlook, Word, Excel, SharePoint, etc. It is suitable for organization that requires collaboration and better email features. The subscription cost, on the other hand, is perhaps not for every user, individuals, and small company looking for the simpler and more affordable choice.

Yahoo Mail is an attractive alternative as it is a free to use, user-friendly email client which has 20GB storage space, intelligently organize features, a tabbed interface and a great search function without having to pay a subscription. Whether you are moving to a more streamlined email application, combining mail accounts or looking to escape enterprise software altogether, moving from Office 365 to Yahoo Mail can make a great deal of sense.

Office 365 to Yahoo Mail migration

For a smooth and secure migration process, EdbMails provides an efficient Office 365 Migration tool that performs data transfer without any data loss. Handles selective migration, automatic mapping of mailboxes, and secure authorisation with OAuth 2.0 and multi-factor authentication support, making it a perfect and simple migration tool.

Best Professional Solution for Office 365 to Yahoo Mail Migration
To migrate your Office 365 smoothly and safely to Yahoo Mail, the top professional tool that will make the work is EdbMails Office 365 Migration Software. The tool has an easy and simple interface, making it user-friendly for all (technical and non-technical) and enabling them to carry out the migration process. EdbMails is certified by ISO 27001:2013. It shows the level of security of data during the migration process. It supports multi-language data, which is essential to manage email content all over the world. It is affordable and is suitable for all, from individuals to small businesses, large corporations, and you get the best value for money without a loss in performance.
A cost-effective license for individuals, small businesses and large organizations provides great value while not degrading the product's quality. Selected data migration, automatic mailbox mapping and a safe and secure transfer accuracy make EdbMails a flawless and risk-free Office 365 migration to Yahoo Mail.
Office 365 to Yahoo Mail migration: Pre-migration activities
Before initiating the migration process from Office 365 to a Yahoo Mail server, ensure the following preparatory tasks are completed:
- On the source Office 365 server side :
  1. For Auto Registration of the EdbMails application in Entra ID (Azure Active Directory), a global administrator account with an associated mailbox is required. If you prefer Manual Registration, you can use either a global admin account or any user account that has full mailbox access permissions.
  2. Assign the suitable Office 365 licenses for the mailboxes you wish to migrate
    Click here to assign Microsoft 365 licenses to user accounts
  3. To migrate Office 365 public folders, archive mailboxes and shared mailboxes, ensure that you configure them appropriately.
    Click here to create Office 365 Public folder and assign admin permissions.
    Click here to create Shared mailboxes on Office 365 and set the required permission.
    Click here to enable archive mailboxes on Office 365.
  4. Verify that you have enough bandwidth for Office 365 migration
    Click here for network and migration planning, performance factors and best practices for Office 365 migration.
  5. For large messages(items) migration, configure Office 365 to increase the message size limit.
    Click here for the steps to increase the message size on Office 365 to 150MB.
- On the Destination IMAP server side :
  1. Obtain your Yahoo Mail account IMAP host name, port number, email address, and password for the login.
  2. For migrating multiple mailboxes, download a sample CSV file from EdbMails and fill it with all the details of the required fields: email address, password, Yahoo Mail IMAP host name, and port number.
How to migrate emails from Office 365 to Yahoo Mail using EdbMails
Step 1: Download and Install EdbMails software
- Download and install the EdbMails application on your computer.
- Launch the EdbMails software login with your email address and password or ‘Start Your Free Trial’ to begin.
  See EdbMails system requirements for Office 365 to Yahoo Mail migration
Step 2: Select the Office 365 to IMAP migration option
- Choose the ‘Office 365 Migration’ option and select ‘Office 365 to IMAP migration’.
- Proceed with the default job name or click ‘New Job’ to change.
Step 3: Connect to source Office 365 server
- Click ‘Add New Connection’ to set up a new connection with the source Office 365 server, or choose ‘Connect to Existing’ to reuse a previously configured connection.
- Choose the appropriate connection options and proceed by clicking ‘Next’.
- Then, select your preferred authentication method and hit the ‘Login’ button to continue.
- Sign in through the Microsoft authentication page and load the mailboxes.
- Choose the mailboxes you want to migrate and click ‘Next’ to proceed.
  
  Connect to Office 365 server using secure modern authentication
Step 4: Connect to target Yahoo Mail server
- Select ‘Connect to IMAP’ or ‘Connect to POP3’ depending on your destination server. For a single user, choose ‘Single User / Account Migration’ and provide the target account details along with the IMAP host.
- Click ‘Login’ to connect to the target mailbox, allow it to load, and then click ‘Next’ to move forward.
- For bulk migration, choose ‘Multiple (Bulk) Users/Accounts Migration’ and proceed by clicking ‘Next’.
- Select ‘IMAP Migration CSV File’ to proceed.
- A prompt will appear to download the sample .csv file. Select a folder on your computer where you would like to save it.
- Open the downloaded CSV file and enter the necessary details, such as email address (mailbox name), password, host name, and port. Fields not required for the migration can be set to ‘NA’. Once all updates are made, save and close the file.
- Click ‘Load Modified CSV File’ to select your updated CSV.
- Review the listed mailboxes, and then click ‘Next’ to continue.
- CalDAV/CardDAV Migration
  To migrate emails, calendars, and contacts from Office 365 to Yahoo platform with CalDAV/CardDAV support, select ‘IMAP with CalDAV/CardDAV Migration CSV File’ and proceed.
- You will be prompted to download a sample CSV file. Choose a suitable location on your computer and save the file.
- Open the CSV file and enter the required information, including Source Mailbox Name, Password, Host, Port, CalDAV Username, CalDAV Password, CalDAV Server, CalDAV Folder, CardDAV Username, CardDAV Password, CardDAV Server, and CardDAV Folder. After completing the updates, save and close the file.
- Click ‘Load Modified CSV File’, browse to the folder where your updated CSV is saved, and load it into the application to proceed.
Step 5: Map Office 365 to Yahoo Mail mailboxes
- Select the mailbox mapping option as needed.
- EdbMails automatically maps Office 365 and Yahoo Mail mailboxes. You can also map them manually if needed.
Step 6: Start the Office 365 to Yahoo Mail migration
- Click ‘Start Migration’ to begin the transfer.
- After completion, click ‘View Log’ to check the detailed migration report and verify the results on the target server.
Post migration activities
Upon completion of migration, modify your MX records so that inbound emails are redirected to the new destination server.

Common Mistakes to Avoid During Office 365 to Yahoo Mail Migration:

Deleting Source Mailboxes Before Verifying the Migration: EdbMails suggests verifying the migrated data by logs and then check the destination Yahoo Mailbox before deleting or modifying any of Office 365 Mailboxes.
Using Incorrect Yahoo IMAP Host or Port Settings: Any incorrect configuration in IMAP settings can result in login errors. Each Yahoo mailbox should be migrated using the correct IMAP settings such as, IMAP server details, IMAP server host, port and authentication credentials.
Overlooking Migration Verification and Error Logs: If migration status reports are not taken into account, missed/failed items might not be detected. EdbMails provides comprehensive logs for all mailboxes during the migration. The users can review mailbox migration progress, detect and fix the error and retry the migration of that particular mailbox.

Benefits of EdbMails Office 365 to Yahoo Mail migration tool

Enhanced security with MFA: EdbMails has a secure login with modern authentication and Multi-Factor Authentication (MFA). This creates an additional level of security during your Office 365 to Yahoo migration and ensures only valid users may access or migrate your sensitive mailbox information.
24/7 free tech support: The support team from EdbMails are always available for help whenever you have any kind of problems. The technical specialists are available 24/7 to help with migration questions and guidance on setup throughout your entire move at no added cost.
Selective data migration: Using EdbMails, you can filter and migrate the selected required mails, folders, or a date range. This would speed up transfer time, reduce unnecessary mailbox load and ensure that only what you want is moved to your Yahoo Mail.
Automatic mailbox mapping: The source and target mailboxes are matched intelligently, without manual input. This automatic mapping feature guarantees an accurate time saving way of avoid errors as you move from Office 365 to Yahoo Mail.
Multilingual support: EdbMails can recover mailbox data from multiple languages without corrupting or altering content. This is particularly important for those users from overseas with multiple character sets or local formats in their Office 365 mailboxes.