Convert Outlook PST to MBOX Format Manually (Free)


Supported Outlook Versions: 2019 / 2016 / 2013 / 2010 / 2007 / 2003

For OS: Windows / MAC / Linux

PST and MBOX are two different file formats that are used by email clients to store their email database. Unfortunately, there is no direct way to convert Outlook PST file to MBOX format except third-party tools. However, by using some manual tricks, we can easily convert PST to MBOX file type. It is quite an easy and safe method. But, you need to put some effort and time to perform PST to MBOX conversion. By converting PST to MBOX file type, you can easily access PST emails in any MBOX supported email platform. In this section, you can check each and every step with images to export Outlook emails to MBOX file type.

There are two quick steps to convert PST to MBOX:

  1. Import Outlook PST emails to the Gmail account.
  2. Export Gmail emails to the MBOX format.

1. Import Outlook PST emails to the Gmail account


To import PST emails to the Gmail account , we need a configured Gmail account with IMAP settings. IMAP is important as it allows to sync local data to the server. So, configure a Gmail account with Outlook using IMAP settings. After that, create a new folder in the Outlook IMAP account and drag all the PST emails into the newly created folder. Now, you can check this folder in the Gmail account and all the imported PST emails.

# Enable IMAP in Gmail Account.
# Configure Gmail Account with Outlook using IMAP.
# Create a New Folder in Outlook and Import Emails.
# Open the Gmail account and find PST emails.

Enable IMAP in Gmail Account


  • Step 1: Open the Gmail account, click on the Gear icon in the top right corner. Click Settings.
    Gmail Account Settings
  • Step 2: Click on the "Forwarding and POP/IMAP" option. Select the radio button labeled Enable IMAP and click on the "Save Changes" button.
    Enable IMAP Gmail

Configure Gmail Account with Outlook using IMAP.


  • Step 1: Allow Less Secure Appp - Go to this link and turn it on:
    https://myaccount.google.com/lesssecureapps
    Less Secure Apps Setting
  • Step 2: In Outlook, Go to the File tab » Info » Account Settings.
    Outlook Account Settings
  • Step 3: From the Email option, click on the New button.
    New Email Account Settings
  • Step 4: Fill Account details and click "Next".
    Auto Account Setup
  • Step 5: Click on the "Finish" button
    Congratulation Message

Create a New Folder in Outlook and Import Emails.


  • Step 1: Right-click on the IMAP account and click New Folder. Enter the Name of the folder and click Ok.
    Create New Folder in IMAP Account
    Create New Folder
  • Step 2: Select all the PST emails and drag them into the newly created folder.
    Drag PST Emails

Open the Gmail account and find PST emails.


  • Open the Gmail account and check the folder in the left pane.
    Check Imported Folder

2. Export Gmail emails to the MBOX format.


Google Takeout is a free option provided by Google to export all the Google products including Mail, Contacts, Calendar, etc. As we need to export Gmail emails in MBOX format, so we can use this facility as it provides option to export Gmail emails in the MBOX file type. By using some simple steps, we can easily export emails from the Gmail account.

  • Step 1: Open this link: https://takeout.google.com/ and log in with your Gmail credentials.
  • Step 2: Select data to include
    After login, you can find many Google products here to export. In our case, we need to select Mail. Click on the option labeled "All Mail data included".
    Google Takeout Option
  • Step 3: In the Mail content options, just select the folder which we created before. So that, we can export only PST emails. Click Ok.
    Mail Content Options
  • Step 4: In the end, click on the "Next Step".
    Exit Mail Content
  • Step 5: Choose file type, frequency & destination.
    Select Delivery method, Frequency, File type & size, and click on the "Create export" button.
    GTakeout Delivery Method
  • Step 6: As we selected the email delivery method. So, we will get a download link in the email to download archive emails. You can select a different delivery method as per your ease.
    *Emails will be downloaded in the MBOX file format.
    Download Archive Option

That is the manual process by which we can easily convert PST file emails to the MBOX file type. The process is quite simple, and we don't need to pay a single penny to perform the PST to MBOX conversion . So, we suggest this way to export Outlook emails to the MBOX file format. You can easily import the resultant MBOX file into any MBOX supported platform such as Thunderbird, Eudora Mail, Netscape, Apple Mail, etc. If you have any doubt or questions about the process, then feel free to ask.

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