How to Export Amazon WorkMail Emails to Thunderbird
Are you trying to move Amazon WorkMail emails to Thunderbird? You are in the right place. This guide shows two safe methods. One uses IMAP. The other uses a dedicated migrator. Both keep your mail, folders, and attachments intact.
Many teams move from AWS WorkMail to Thunderbird for offline access and free storage. The shift can be tricky without the right steps. Read on for the smoothest path.
Overview
Amazon WorkMail is a managed business email service. Thunderbird is a free desktop client from Mozilla. WorkMail supports IMAP, so manual import works. For large mailboxes, a bulk migrator is faster. This guide covers both routes in clear steps.
Why Move WorkMail Emails to Thunderbird?
- Read mail offline on any computer.
- Cut AWS WorkMail subscription costs.
- Keep a local archive for legal hold.
- Search mail without server load.
- Switch jobs or companies without losing history.
- Manage multiple email accounts in one place.
Common Migration Scenarios and Errors
- Account closing: The WorkMail account will be deactivated by the admin.
- Slow IMAP sync: Mailboxes above 5 GB hang during the first sync.
- Folder mismatch: Custom labels do not map cleanly during IMAP transfer.
- Attachment loss: Large files fail to download during direct import.
- Duplicate mail: Repeat sync runs create duplicate entries in Thunderbird.
- Login error: AWS WorkMail credentials get rejected without app password setup.
Manual vs Automated Method
Quick Side by Side
- Speed: Manual IMAP takes hours. Automated migrator finishes in minutes.
- Bulk: Manual moves one folder at a time. Automated handles full mailbox at once.
- Folders: Manual may break custom labels. Automated preserves the full tree.
- Attachments: Manual can drop large files. Automated keeps every attachment.
- Filters: Manual offers none. Automated supports date, sender, and folder filters.
- Reliability: Manual fails on unstable connections. Automated supports pause and resume.
Manual Method to Export WorkMail to Thunderbird
This works for small mailboxes when the WorkMail server is live.
- Open Thunderbird on your PC.
- Go to Account Settings and click Add Mail Account.
- Enter your WorkMail address and password.
- Select IMAP as the protocol.
- Set incoming server to imap.mail.us-east-1.awsapps.com or your region equivalent.
- Set port 993 with SSL/TLS for incoming and 465 with SSL/TLS for outgoing.
- Click Done and wait for the first sync to complete.
- Right click each folder and choose Properties, then Synchronization to mark for offline download.
This route depends on a stable connection. It also keeps mail tied to your AWS WorkMail account.
Automated Method for Bulk Migration
The Corbett Email Migrator moves WorkMail emails to Thunderbird in one run. It also exports to PST, MBOX, EML, MSG, PDF, and HTML if needed. Folder structure, labels, and attachments stay intact. Bulk runs work even when the WorkMail account is offline.
Filters by date range, sender, subject, and folder are built in. Pause and resume is supported on long runs. The app runs on Windows 11, 10, 8, and 7.
Step by Step Walkthrough
Follow these five steps to migrate AWS WorkMail mail to Thunderbird in bulk.
Step 1. Install and open the application on your Windows PC.
Step 2. Open Email Accounts and click Add Account. Pick AWS WorkMail or IMAP from the list.
Step 4. Preview the uploaded data. Pick folders, labels, or specific date ranges.

Step 5. Click Export and select Thunderbird as the target. Set a destination folder and start the run.

Pro Tips for Smooth Migration
- Use a wired connection during the first large sync.
- Disable antivirus mail scanning during the export to avoid slowdowns.
- Split very large folders by year using date filters.
- Keep the WorkMail account active until the local Thunderbird copy is verified.
- Compact Thunderbird folders after import to free disk space.
- Back up the Thunderbird profile folder right after migration.
Frequently Asked Questions
Q1. Can I move WorkMail emails without the password if the admin disabled the account?
No. Active credentials are needed for IMAP. If the account is gone, restore it briefly to back up mail.
Q2. Will folder structure stay intact after migration?
Yes. Both manual IMAP and the automated route preserve the full folder tree, including custom labels.
Q3. Are attachments included in the migration?
Yes. Every attachment is migrated along with the parent email.
Q4. Does Thunderbird support multiple WorkMail accounts at once?
Yes. You can add several WorkMail accounts to the same Thunderbird profile.
Q5. Can I keep a backup before importing into Thunderbird?
Yes. The automated method can export to MBOX or PST first, then load into Thunderbird later.
Q6. How long does migration take for a 10 GB WorkMail mailbox?
Manual IMAP often runs 4-6 hours. The automated route finishes in under 30 minutes on most setups.
Conclusion
Moving WorkMail emails to Thunderbird is simple with the right method. Manual IMAP works for small accounts and steady connections. For full mailboxes and tight deadlines, a dedicated migrator is the safer pick. Follow the steps above and your WorkMail data will sit safely inside Thunderbird in minutes.
