How to Archive Email in Thunderbird: Complete 2026 Guide (Mac & Windows)

What does Archiving Emails in Thunderbird Mean?

If your Thunderbird mailboxes are piling up and you want to manage the mailboxes without deleting them. Then you must consider archiving email in Thunderbird.

When you archive messages in Thunderbird, they are moved from their current folder location(like Inbox, Sent, or custom folders) to a dedicated local archive folder. So they are still stored in your profile data. When archiving emails – message body, attachment, formatting, and metadata remains 100% intact.

You can still search, reply, and access them under the archive folder. You can easily be retrieved to their original folder anytime you want.

Why Users Archive Email in Thunderbird

Users often archive email in Thunderbird due to the following reasons and the benefits it offers:

1. It makes the Thunderbird mailboxes more organised.
2. Archive old folders in Thunderbird for data retention without interruption.
3. Better-Up the performance of Mozilla Thunderbird.
4. Users also archive Mail in Thunderbird to a local folder to save up server space.

How to Quick-Archive Email in Thunderbird? Manual Way

Mozilla Thunderbird email client offers its users a quick archive option that even auto-sorts emails based on Year/Month. It enables you to both bulk and selectively archive Thunderbird emails.

Note: The archive folder will only be visible after you have first archived an email message in Thunderbird.

Follow the steps to archive emails in Thunderbird:

1. Open the Thunderbird Application.
2. Go to the email message you want to archive.
3. Use Ctrl/Shift to bulk select.
4. Right-click and choose the Archive option from the pop-up.
   

How to Thunderbird Archive Email Older Than a Date

Thunderbird does have a direct option for date-based auto-archiving. However, using message filters is a great way to archive email in Thunderbird older than a specific date.

Here is how to archive Thunderbird email step-by-step based on date:

1. In the Thunderbird App, go to the navigation menu.
2. Choose Tools >> Message Filter.
   
3. From “Filter For:” select the email account and create New.
   
4. Set the filter to Date, Is Before, and set the desired date.
5. From the perform action, choose “Move Message To” and select the archive folder as the destination.
6. Hit OK.

Tip: You can also use advanced filters to bulk archive Emails in Thunderbird based on the subject, to, from, tags, and more.

Archive Email in Thunderbird Not Working? Issues Fixed

If you can not find an option to archive emails in Thunderbird, it is likely due to disabled archive settings in Thunderbird. Here is how to enable & disable the archive setting

1. Launch your Thunderbird>> Click on the Navigation menu at the top.
2. Go to Account Settings.
3. Navigate to Copies & Folder.
4. Search for the Message Archive option.
5. Ensure the box is checked to enable archiving emails in Thunderbird.
6. Restart Thunderbird to fix the issue.

Note: Thunderbird allows you to customize these archive settings for each account separately. Make sure you have archive settings enabled for all accounts.

Find Archived Emails in Thunderbird

Here are the steps on how to view emails after archiving in Thunderbird:

1. Open Thunderbird on your desktop.
2. From the left panel, go to the local folder >> archives.
3. Thunderbird auto-sorts emails into subfolders based on year or month, based on archive settings.
4. You can look up your archived emails under these subfolders.

How to Change Thunderbird Archive Settings?

Mozilla Thunderbird, as an email client, enables you to modify the auto-archive settings to sort email data based on your requirements.

Here are the steps to modify the Thunderbird email archive options:

1. Open Thunderbird on Windows & Mac.
2. Go to Accounts Settings.
3. On the left panel under each account, go to Copies & Folders.
4. Scroll to Message Archives.
5. Select the Archive message destination in Thunderbird, whether you want to archive in the Local folder or in IMAP configured account itself
6. Click on the Advanced option.
   
7. Select if you want to create a subfolder automatically based on year/month, or if you want to keep them in a single folder.
8. Press Ok and Restart Thunderbird.

How to Retrieve Archived Emails in Thunderbird?

In Thunderbird, it is very easy to move an archived message to your inbox or desired folder location. Users can simply drag and drop emails from the achieved folder.

In case you need to restore the entire folder from Thunderbird archives – Select the folder, choose Move To, and select the desired location.

Archiving Thunderbird Emails V/S Backup

Archiving emails in Thunderbird is a great way to retain and organize your inbox without deleting them. However, local email archival does not replace the need for backup. Here is how they differ: