How to Migrate IMAP to Office 365? Step-by-Step
Moving from IMAP to Office 365 provides firms with a more modern way of communicating & collaborating in the cloud. Unlike the old-school IMAP email services, O365 brings together mail messages, contacts, calendars, & tasks along with powerful productivity tools such as Teams, OneDrive, SharePoint, Excel, Word, & Outlook.
Plus, every user gets a generous 50 GB of mailbox storage (this can even go up to 100 GB with E3/E5 plans) and top notch security, archiving, & compliance features too. Needless to mention, the easy access enjoyed in Microsoft’s cloud platform is encouraging this switch by enterprises to witness business growth. Here in this blog, we will be discussing the process to migrate IMAP to Office 365 using manual methodologies and also talk about an automated tool that performs in the best way possible.
React…Migrate! But Wait, Find a Method That’s Great!
Moving mails is no fun, particularly if years of business-critical data is involved. This need often arises when firms wish for robust security, better collaboration, & remote access. This is when they decided to migrate IMAP to Office 365. Now imagine that your emails disappeared during the migration! This fear is common & real.
Q: How to move old IMAP emails to O365 safely?
A: You can use Microsoft’s manual IMAP migration but an automated tool is best.
Q: Do the folders remain the same even after IMAP migration?
A: Certainly! If this process to migrate IMAP to M365 is done using an automated tool, the folder structure will remain intact.
Studying the Actual Requirement
Major email providers such as Gmail, Yahoo Mail, & Outlook.com tend to offer IMAP email systems. There are also specialized services like Proton Mail for security & Zoho Mail for business. Such services allow accessing emails using different email programs such as Mozilla Thunderbird, Apple Mail, or MS Outlook. Switching from IMAP email systems to M365 is a strategic move for businesses targeting to enhance scalability, improve security, & foster smoother teamwork.
IMAP (i.e. Internet-Message-Access-Protocol) tends to allow people to access mails saved on a remote server, but this does not provide advanced features, robust security, & smooth management resources that O365 provides. When people try to import IMAP to Office 365, they usually encounter problems such as login failures, missing mails, slow migration speed, & folder mismatch. IMAP servers were not designed for big modern cloud moves. This makes the task risky without proper planning. Firms that wish to migrate IMAP email to Office 365 often underestimate this complexity involved.
Market Statistics You Must Know
As per Microsoft documentation (Microsoft Learn), more than 85 percent of enterprises use M365 for email services. Gartner also reports that cloud-based email adoption has amplified by 32 percent year over year because of security & flexibility advantages. Such numbers tell why people want to migrate IMAP to Microsoft 365.
An Actual Corporate Case
A highly experienced IT admin managed 5 IMAP accounts for his firm. One fine day, the server suddenly crashed, and emails went inaccessible. He then decided to migrate emails from IMAP to Office 365 but struggled somewhat with manual errors.
He also said, “Email migration is not just about moving data, it is about safeguarding trust.”
When Do People Usually Migrate IMAP to Office 365?
People mostly need to export IMAP to Office 365 when the want the following:
- Cloud Accessibility: Enjoy seamless access to emails & data on multiple devices.
- Automatic Updates: One can experience regular updates along with feature enhancements without requiring any manual action.
- Enhanced Management: Advanced administrative tools tend to facilitate efficient user management & robust email filtering capabilities.
- Collaboration Solutions: Effortless integration with platforms like Teams, OneDrive, & SharePoint fosters enhanced teamwork as well as streamlined file sharing.
- Access from Anywhere: O365 provides users with email accessibility across almost all devices, making it an ideal solution for remote work.
- Strengthened Security: M365 ensures protection with multi-factor authentication, encrypted email services, & comprehensive threat detection.
- Centralized Administration: Simplified management through M365 admin center allows for efficient operation.
- Generous Mailbox Capacity: O365 provides more than 50GB of mailbox storage available to each user.
- Shared Access: You want shared access so you migrate IMAP to Office 365 shared mailbox
Manual Methodology for Doing This Yourself
Microsoft provides a built-in way for those wondering how to migrate IMAP email to Office 365.
Manual Steps to Migrate IMAP to O365 Using Office365 Admin Center
O365 Admin Center provides a built-in way to migrate IMAP emails to O365.
- STEP 1: Create Users & Licenses: First, log in to the O365 Admin Center. Set up users in the M365 Admin Center & assign licenses.
- STEP 2: Prepare CSV: Then, create a CSV file with columns for your O365 email, IMAP email, IMAP username, IMAP server, & IMAP password.
- STEP 3: Create Endpoint: Next, in EAC, create an IMAP Migration Endpoint, giving your IMAP server details (including server name, port, & SSL etc).
- STEP 4: Start Migration Batch: After that, in EAC, start a new IMAP migration batch, select the endpoint, and then upload your CSV file.
- STEP 5: Monitor: Now, wait for the batch status to show “Synced,” then assign licenses & update DNS records (MX, CNAME, TXT) to point to O365, and verify email delivery.
Pros
- This is a free methodology.
- This is a Microsoft-supported way.
Limitations of the Manual Methodology
Below mentioned are some known IMAP migration to Office 365 limitations:
- This method does not support advanced customization options that are available in an automated tool.
- This is a time taking procedure that will eat up a lot of your time.
- You need technical skills to undertake this process.
- There is a risk of data loss as well.
- You do not get options here like email filters, duplicate removal, & selective migration that you enjoy with an automated tool.
- This is a very slow process to migrate IMAP to 365 if mailboxes are large.
These limitations make many people rethink how to migrate IMAP email accounts to Office 365 manually.
An Automated Tool That Serves Your Purpose Well!
An automated tool such as the popular Email Backup Software helps people to migrate IMAP email to Microsoft 365 without any technical errors. This software allows you to migrate other types of IMAP mailboxes to Microsoft 365 or Office 365 safely from a single place. You can even try the DEMO IMAP to Office 365 migration tool free to evaluate the software before you purchase it finally.
Useful Features of This Tool
Note the following features of this software, which would really prove helpful:
- Direct IMAP login.
- This IMAP to Microsoft 365 migration tool ensures folder structure preservation.
- This IMAP to Office 365 tool allows batch migration.
- This software is super simple to use with clear-cut instructions provided.
- This is a 100% safe process of migration.
Know the Simple Steps of This Tool
Know how to migrate email to Microsoft 365 from any IMAP server with IMAP migration to Office 365 step by step procedure using this automated tool:
- First of all, download & install this software, and run it on your system.
- From the left panel, you must select the relevant IMAP email source.

- Now, you have to enter login details and then login.

- The software will analyze your email folders.
- You will be able to see a folder list on the left side.

- Then, you must select Office 365 as the saving option for backed up data.

- Thereafter, click the Backup button to begin the process to migrate mailbox from IMAP to Office 365.
- You can view live downloading progress.
- Wait for the process to complete.
Manual Methodology vs the Automated Tool
Let us do a comparison between the manual methodology and the automated tool:
| Manual Methodology | Automated Tool |
| Difficult to do | Easy for all |
| Data loss risk | Totally safe |
| Slow | Quick |
| Limited control | Complete control |
FAQ: IMAP to Office 365 Migration
Q 1: Which is the best method to move IMAP mail to Office 365?
A: Use the automated IMAP to Microsoft 365 migration tool for best results.
Q 2: Is it possible to move only some selected folders?
A: Yes! You can migrate IMAP mailbox to Office 365 selectively using the automated tool.
Q 3: Is this IMAP migration risky?
A: Manual methodology isn’t always helpful due to IMAP migration to Office 365 limitations but using an automated tool is the best.
Final Thoughts
Picking the right way to migrate IMAP to Office 365 is very crucial. While the manual methodology has certain limitations, the professional tool gives the best outcome.