How to Migrate Emails from Rediffmail Pro to Microsoft 365 and Google Workspace

by | Sep 14, 2025 | Managed IT Services

Many businesses in India have relied on Rediffmail Pro for their corporate email needs. However, with the rise of modern cloud-based platforms like Microsoft 365 and Google Workspace (formerly G Suite), organizations are increasingly looking to migrate their email to benefit from better collaboration, security, and reliability.

If your company is still using Rediffmail Pro, you may be wondering: how do I move all my old emails safely to Microsoft or Google without losing anything? This guide walks you through the practical methods available.


Why Migrate Away from Rediffmail Pro?

  • Limited features: Rediffmail Pro is mainly an email service, while Microsoft 365 and Google Workspace include calendars, file storage, collaboration, and productivity apps.
  • Better integrations: Modern business apps integrate seamlessly with Outlook or Gmail, making workflows smoother.
  • Advanced security: Built-in threat protection, encryption, and compliance tools help safeguard data.
  • Scalability: Microsoft and Google offer enterprise-grade reliability with 99.9% uptime.

Challenge: No IMAP Support in Rediffmail Pro

Unlike most enterprise email providers, Rediffmail Pro does not support IMAP, which means you cannot perform a direct IMAP migration. Instead, you have to rely on POP, PST exports, or third-party migration tools.


Method 1: Migration to Microsoft 365 (Office 365)

Step 1: Set Up Rediffmail Pro in Outlook via POP

  • Incoming server: pop.rediffmailpro.com, Port 995, SSL: Enabled
  • Outgoing server: smtp.rediffmailpro.com, Port 465 or 587, SSL/TLS

Download all your existing mails into Outlook.

Step 2: Export to a PST File

  • In Outlook, go to: File > Open & Export > Import/Export
  • Choose Export to a file > Outlook Data File (.pst)
  • Save the PST on your system.

Step 3: Import PST into Microsoft 365 Mailbox

  • Add your Microsoft 365 account in Outlook.
  • Go to: File > Import/Export > Import from another program or file
  • Select your PST file and choose your Microsoft mailbox as the destination.

Step 4: Update MX Records

Once migration is done, update your domain’s MX records in DNS to point to Microsoft 365 so new emails land directly in your Microsoft mailbox.


Method 2: Migration to Google Workspace (Gmail for Business)

Step 1: Download Mail into Outlook (POP)

Same as above, configure Rediffmail Pro in Outlook using POP and download all emails.

Step 2: Export to PST

Export all your emails into a PST file.

Step 3: Import into Google Workspace

Google offers a free tool called GSMME (Google Workspace Migration for Microsoft Exchange).

  • Install GSMME on your computer.
  • Sign in with your Google Workspace account.
  • Select your PST file as the source.
  • GSMME will upload all your emails from the PST into Gmail.

Step 4: Change MX Records

Update your domain’s MX records to point to Google’s mail servers to ensure new mail is delivered to Gmail.


Method 3: Use Third-Party Tools

If you’re migrating multiple accounts (for a company), doing PST exports for each user can be tedious. Specialized tools can simplify the process:

  • BitTitan MigrationWiz – Supports POP and can move emails directly to Microsoft 365 or Google Workspace.
  • Kernel for POP to Office 365/Google Workspace – Connects via POP and pushes emails into the cloud mailbox.
  • Stellar Migrator – Another option for bulk migration.

These tools save time and reduce the risk of human error during migration.


Best Practices for Migration

  1. Communicate with users – Inform employees about the migration plan and expected downtime.
  2. Migrate in phases – Move a few test accounts first, then migrate the rest.
  3. Enable forwarding during transition – If Rediffmail Pro supports forwarding, set it up so that no new mail is lost while migration is ongoing.
  4. Backup before cutover – Always keep a PST backup of important mailboxes.
  5. Update DNS records – Point your MX records to Microsoft or Google only after confirming successful migration.

Conclusion

Migrating from Rediffmail Pro to Microsoft 365 or Google Workspace requires a bit of planning since Rediffmail does not support IMAP. For individual users, the POP → PST → Import method works well. For organizations, third-party migration tools offer faster and safer bulk migration.

Once on Microsoft 365 or Google Workspace, you’ll benefit from a modern, secure, and scalable communication platform that supports your business growth.

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