Users generally encounter problem while converting emails using manual method. Note: Instead of copying mail items and folders, you can export the Gmail folder that contains Thunderbird mailboxes to PST file by using MS Outlook Import/Export wizard.

Once synced, migrate thunderbird to MS Outlook for that copy the folder and paste in your new Outlook account.

Let Outlook sync all the Gmail folders including the new folder that you created in Thunderbird.

Step 4: Sign-in to MS Outlook using Gmail IMAP Account

Wait for the Thunderbird emails to get copied to the Gmail server.

Then copy all your Thunderbird email to this new made Gmail folder in Thunderbird.

Enter a name for that folder and then go to ‘Create as a subfolder of’ select your Gmail Account.

On the left panel, Right-click on your Gmail account and select the option ‘New Subfolder’.

Create a new subfolder in your Gmail account.

Step 3: Copy Thunderbird Mail items in Gmail Account

Click the IMAP radio button and then click on ‘ Done‘.

After that, click ‘ Continue‘ to proceed.

Now provide your account details like username, Gmail id and password.

Click ‘ Email‘ under ‘Set up an account’.

Go to Tools and choose Thunderbird Options.

Start Mozilla Thunderbird and click on the Accounts option.

Step 2: Log-in to Thunderbird using your Gmail account

Finally click on the ‘ Save Changes’ button.

Now select ‘ Enable IMAP’ radio button under IMAP Access.

In setting look for ‘ Forwarding POP/IMAP’ option.

Click on Setting icon and then select ‘ Settings’ option.

Step 1: Enable IMAP protocol for your Gmail account For the conversion of Thunderbird emails, you need to perform the following steps:

How to migrate Thunderbird Mail items to Outlook using Gmail IMAP? And, for this, there is an entirely different approach. There are some users who has the need to open Microsoft Outlook PST file or OST file into Thunderbird.

Hence, we need to convert Thunderbird Mail to Outlook supported format.

Due to the difference in file format used by this application it is not possible to transfer data directly. Thunderbird stores all the data in MBOX files while Outlook uses OST and PST files to save the data. Why do we need to Convert Thunderbird Mails to Outlook PST Format?

Mozilla thunderbird outlook pst import