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How to Migrate Rediffmail to Office 365? Explained

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Written By Mohit Kumar Jha  
Anuraag Singh
Approved By Anuraag Singh  
Modified On November 11th, 2025
Reading Time 6 Minutes Reading

Are you searching for methods to migrate Rediffmail to Office 365? Don’t fret anymore! This blog explores the excellent solutions for Rediffmail webmail transfer to O365, besides the reasons for the email transfer. Read this blog and learn the solutions!

Rediffmail is a Mumbai-based Indian information, entertainment, news, and email website. Founded in 1996, it became the first new Indian mainstream business.

Microsoft Office 365 is a cloud-based productivity suite with services like Word, Excel, and Teams for seamless real-time professional collaboration and robust security features for data safety.

Why Rediffmail Users Switch Rediffmail Email to Microsoft 365

  • Instant Accessibility: Being a cloud-based productivity service makes Office 365 the perfect professional suite for on-the-go email access on your mobile.
  • Mailbox Diversity: There is a wide range of Office 365 mailboxes besides the default Primary Mailbox. Microsoft 365 has a Shared Mailbox, In-place Archive Mailbox, Group Mailbox, and Resource Mailbox. Every mailbox has 50 GB of data storage space, with a few subscription plans offering a massive upgrade of 100 GB.
  • Robust Email Security: MS Office 365 has many tight-knit security features like data encryption, DLP (data loss prevention), advanced spam and anti-phishing filters, and threat protection. These features make O365 a reliable and secure productivity platform for all email users.
  • App Integration: Another benefit of having an Office 365 account is the swift and real-time professional collaboration on various applications. The live presentation/meeting feature makes sharing and collaborating on a Word file or Excel sheet easy for every company.

These reasons convince Rediffmail users to switch from Rediffmail email to Microsoft 365. The following sections explore the perfect solution to export Rediffmail mailbox to Office 365, so keep reading the blog!

How to Migrate Rediffmail to Office 365 on Windows Computers?

Since there isn’t any manual solution for Rediffmail webmail transfer to O365, we will discuss the best method for email transfer without worries: SysTools IMAP to Office Migrator. This software works perfectly for Windows OS computers for all versions. You can even use the Delta Migration for importing recent Rediffmail emails to Microsoft 365 without re-migrating the entire mailbox. Another benefit of this software is the transfer of your Rediffmail webmail emails to Shared, Regular, and In-place Archive mailboxes in Office 365, besides the Primary mailbox.

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Steps for Rediffmail to Office 365 Migration on Windows

  • Download and run the software on your Windows OS computer.
  • Click on IMAP as the Source and Office 365 as the Destination under the Setup window.
    set imap as source and o365 as destination
  • Next, click the Email checkbox under Workload Selection.
  • Then, click the Date Filter for limited Rediffmail webmail transfer to O365. Skip it for the whole mailbox migration.
    select email box and date filter for selective rediffmail to office 365 migration
  • Select “Other” under the IMAP Server dropdown menu in the Source window, and enter the IMAP details (server and port number) for Rediffmail.
    choose imap server
  • Next, click “Validate” and allow email reading permission to the software.
  • Then, enter your Office 365 account credentials (email and application ID) under the Destination window.
  • Click the “Validate” button once again for email reading access allowance.
    enter destination account credentials
  • Next, add the Office 365 account(s) in the Users window by clicking the Import Users or Download Template button.
    add users
  • Verify the Source App Password for the added account(s) by clicking “Validate”.
    enter source app password
  • Finally, click the “Start Migration” button to migrate Rediffmail to Office 365.
    click start migration

Export Rediffmail Mailbox to Office 365 Manually

If you operate a Rediffmail Pro subscription, then setting up an auto forwarding rule is a possible way that you can use to force all new emails to go to the intended M365 account.

Here is how you can set it on your Rediff account.

  • Step 1. Log in to Reddif and open the administrative panel.
  • Step 2. Go to the “Auto-Forwarder” or “Other Services” section.
  • Step 3. Click to “Create” a new rule.
  • Step 4. Enter the email address where you want to forward the emails.
  • Step 5. Click “Save”.

However, even after this, a major problem remains that the auto-forwarding rule does not apply to your existing messages. Don’t worry, I will tell you a way to bypass this issue.

Steps to Transfer Existing Rediffmail Data to O365

Here we could send over all the messages one by one by manual forwarding, but it’s too time-consuming and impractical. Not to mention the unintended effect of polluting the email metadata. SO we are not going to forward the messages, but use an email client as our transfer agent.

Step 1. Select any desktop-based email client of your choice. Download and set it on your machine.

Step 2. Then, one by one, add both your Rediffmail and Office 365 accounts to it.

Step 3. Now all that’s left to do is drag and drop emails from the Rediff account to the O365 account.

Step 4. Repeat till you move all the emails.

This process sounds simple, but it hides many problems. First, you get no reports or any indication of how many emails have been moved and how many are left.

So the likelihood of user-generated error is quite high. Not only that, but the drag-and-drop task isn’t that fast either.

The End

We discussed the reasons and solutions to migrate Rediffmail to Office 365. 65, besides the reasons for Rediffmail webmail transfer to O365. The reasons described here make Office 365 the perfect solution for exporting Rediffmail emails and ensuring seamless professional teamwork.

The lack of any manual method to transfer Rediffmail to O365 makes the automated software mentioned here the go-to solution for effective and risk-free import of Rediffmail emails to Microsoft 365. Features like Delta Migration and Concurrent Migration make it the best solution for Rediffmail mailbox to MS Office 365 export for Windows and macOS computers.

Frequently Asked Questions

Q: My organization wishes to move emails into shared mailboxes, not regular ones. Is it possible?

A: Yes, you can choose any official M365 mailbox as a possible destination.

Q: I dont want to move all my Rediff mail messages, just a tiny portion of last month’s messages, is it possible?

A: If you choose the manual route, this surgical selection is quite difficult. However, with the automated solution, you can set a date filter at the setup stage itself.

Q: Will the tool work on macOS?

A: The tool I proposed in this write-up is specifically for Windows machines. You can get a sister variant for conducting pure IMAP Migrations; it works on macOS as well.

  author

By Mohit Kumar Jha

Mohit is a Microsoft-certified expert who has assisted thousands of clients with Outlook & Microsoft Office 365 issues. He enjoys writing on email clients as well as data migration. He is always excited about giving troubled readers the most up-to-date knowledge, explanation, and refinements.