Export IMAP to PST (Windows & macOS) – Backup Emails Easily

Written By Tej Pratap Shukla

Approved By Anuraag Singh

Modified On March 22nd, 2026

Reading Time 9 Minutes Reading

Exporting IMAP to PST isn’t a direct process because IMAP stores emails on a mail server, while PST is a local file format used by Microsoft Outlook. In simple terms, if you use an IMAP-based service like Gmail and want to export IMAP to PST, you first need to sync your mailbox with Outlook, since it natively supports PST export.

This step is necessary because IMAP itself doesn’t offer any built-in option to create PST files.

Not only this, but several techniques help you to backup IMAP email to PST hassle-free in one go. In this complete how-to tutorial, I’ll explain every possible method for the same, with the complete set of instructions, so that you can complete the procedure quickly and error-free.

So, let’s begin our discussion with an overview of the IMAP protocol and PST (Personal Storage Table) file format.

What are IMAP and PST?

As you’re searching for how to export IMAP to PST, you may already be familiar with these terms. However, understanding them in detail will help you complete the backup process more effectively.

IMAP (Internet Message Access Protocol)

IMAP is a protocol that allows access to emails directly from a mail server.

What is a mail server? It is a system that stores, sends, and receives your email messages over the internet. Instead of downloading emails permanently to your device.

The emails stay on the IMAP server and sync across multiple devices. In simple terms, if you’re using Yahoo Mail and want to access the same data in Outlook, you can configure both services using the IMAP protocol. This allows Outlook to connect to the Yahoo mail server and display all your emails while keeping everything synchronised across platforms.

I hope you now have a clear understanding of what IMAP and mail servers are.

PST (Personal Storage Table)

PST is a file format used by Microsoft Outlook to store emails, contacts, calendars, and other mailbox data locally. Outlook natively supports this file format for importing and exporting.

So essentially, backing up IMAP to PST means:

Downloading your emails from the server and saving them in a file that Outlook can open.

Challenges Faced by Users While Exporting IMAP to PST

Let me be honest, exporting IMAP data isn’t always smooth. Here are some common issues users encounter while backing up data:

No direct export option from IMAP servers
Risk of data loss during manual processes
Time-consuming synchronization
Attachment handling issues
Duplicate emails
Folder hierarchy disruptions

That’s why choosing the right method is crucial. Next, I’ll share all the tried and tested methods, so that you can ensure metadata remains intact with 0% data loss while exporting or synchronising.

How to Export IMAP to PST?

As we learned, exporting IMAP to PST isn’t a direct process because IMAP stores emails on a server, while PST is a local file format used by Outlook. As per my experience, there are multiple ways to complete this task depending on your requirements, i.e., a manual approach or a faster automated solution.

Below, I’ll walk you through the most effective methods step by step, including what works best and the limitations you should be aware of.

#Method 1. Backup IMAP to PST Using Outlook

From the start of the discussion, I shared that syncing IMAP with Outlook is the most straightforward way to export IMAP to PST. By configuring your IMAP account in Outlook and allowing it to sync completely, you can easily export the entire mailbox into a PST file.

However, there’s one important thing I’ve learned:

Outlook for Windows supports direct PST export, but Outlook for Mac does not.

So, when I work on macOS, I follow a slightly different approach, which I’ll explain below:

#For Windows Outlook

#Step 1. Configure IMAP Account in Outlook

First, add an IMAP account to Outlook:

Open Microsoft Outlook
Go to File > Add Account
Enter your IMAP email credentials
Allow Outlook to sync all emails
Wait until the full mailbox sync completes before exporting.

#Step 2. Export IMAP to PST

Once synchronisation is complete, export the mailbox:

Go to File > Open & Export > Import/Export
Choose Export to a file
Select Outlook Data File (.pst)
Choose your IMAP mailbox
Enable Include subfolders
Select destination path
Click Finish

#Step 3. Verify Exported PST File

After exporting, always verify:

Email count
Attachments
Folder structure

#For macOS Outlook

#Step 1. Sync your IMAP-supported client to Outlook:

Open Outlook for Mac
Click Tools > Accounts or Add Account
Enter IMAP credentials
Start synchronization

#Step 2. Export IMAP Data as OLM (Mac)

Go to File > Export
Select Mail, Contacts, Calendars (as needed)
Save the file as OLM format.

#Step 3. After exporting OLM, convert it into the PST file format via a cutting-edge OLM Converter software, which ensures that all your mailbox data, including emails, attachments, contacts, and folder hierarchy, is accurately preserved without any data loss or formatting issues.

Let me tell you one thing: this method works best for small to medium-sized mailboxes. This method lacks support for large mailboxes and may create issues such as:

Requires Outlook installation. If you don’t have classic Outlook installed in your system, then you’ll be unable to proceed.
Due to an unstable internet connection or any hardware issue, there is a huge risk of incomplete export if sync fails.
There are no advanced filtering options. This means you can’t export specific data; you have to back up the entire IMAP mailbox.
No option for Resume & Pause, if the export procedure gets stuck at some point, you have to restart it, which can be time-consuming.

To bypass these limitations, move to the next option.

#Method 2. Backup IMAP to PST Using Drag & Drop

This is a quick and simple method to export specific IMAP emails instead of the entire mailbox. In this technique, you have to drag an email from your IMAP client and drop it into Outlook. For every email, you have to do this. I know this is a bit time-consuming, and it works well when you have only 5-15 emails to export.

#Step 1. Sync the IMAP account in Outlook, as we discussed in the previous method.

#Step 2. Create a New PST File:

Click on File > Account Settings > Account Settings
Go to the Data Files tab
Click Add
Choose a location on your system
Enter a name for the PST file and click OK

#Step 3. Drag and Drop IMAP Emails into PST

In Outlook, locate your IMAP mailbox (Inbox, Sent, etc.)
Select the emails or folders to export
Drag and drop them into the newly created PST file
Wait for the copying process to complete

#Method 3. Cutting-edge Solution to Export IMAP to PST

As we discussed earlier, the manual solutions come with limitations such as sync delays, a lack of large mailbox support, and time-consuming processes. That’s why most of the users, including me, switched to the SysTools IMAP Downloader, which offers a more reliable and efficient solution. The best part is that it works on both Windows & macOS systems. This means you don’t need to convert OLM to PST manually, as the tool directly exports IMAP emails into PST format with complete accuracy. Moreover, it doesn’t need Outlook (Windows & macOS) to be installed.

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This eliminates the risk of incomplete synchronisation and ensures that all emails, attachments, and folder structures are preserved accurately.

It is extremely helpful when dealing with multiple accounts and large datasets. The interface is simple, and even if you’re not highly technical, you can easily perform the export without complications.

Still in doubt? Just try this for free, and get these benefits:

No Outlook installation required
Bulk Email Downloader to backup IMAP to PST from multiple IMAP accounts simultaneously
Maintains Folder Hierarchy and original structure
Advanced Filters (date range, subject, sender, etc.)
Incremental Backup to avoid duplicate emails
Supports large mailboxes without performance issues
Secure Login with modern authentication protocols
Option to Exclude Deleted or Unwanted Emails
24/7 Technical Support

After reading this, I recommend trying it. After the installation, follow these steps to export IMAP to PST:

#Step 1. Open the utility, and select the PST as the output option.

export imap to pst

#Step 2. Now mark the Email box, and use the Date Filter option if needed to back up specific data.

select date filter

#Step 3. Now, in the source tab, choose your IMAP Server, such as Gmail, Apple Mail, Yahoo or any other custom domain.

choose your IMAP server

#Step 4. Once you have validated all the permissions, hit the “Backup folder path” button to select the destination where you want to save the resultant PST file.

Backup Folder Path

#Step 5. Lastly, press the Start Backup button to backup IMAP to PST.

Start Backup

That’s all! Within these five quick steps, you can easily back up any IMAP-supported clients in PST, MBOX, EML, MSG, and PDF.

Author’s Verdict

If you’re working with a small mailbox, Outlook’s manual method works fine. But for larger or business-critical backup or migrations, always rely on the specified SysTools software, which is compatible with both Windows and macOS, to save time and ensure data integrity.