Corbett
Corbett IMAP Migration Tool moves mail from one IMAP account to another, across the same or a different domain, and from IMAP servers to Yahoo, Gmail and Office 365. It handles 100+ IMAP services, keeps headers and folder hierarchy and detects server address and port by itself. Output also goes to EML, MBOX, PST and document formats. Try the free demo first.
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Mail passes between the two servers and this PC only. Corbett never sees the accounts or the messages.
Free demo, scanned clean on VirusTotal and a 30-day money-back window.
Lifetime licence from $99 Demo migrates 10 items per folder
IMAP migration facts
Old IMAP accounts get closed after mergers, domain switches and moves to new providers, and the mail needs a safe landing. This tool signs in to source and target, then transfers folders and messages with full metadata.
Moved with the mail
Supported accounts
Migration targets
Not moved
Why Mail Teams Need an IMAP Migration Tool
Dragging folders between two accounts breaks on large mailboxes and loses properties on the way. A migration run moves every folder in one pass and keeps the structure the same on both sides.
Core features
Install, add the source account, preview the mail and migrate.
Install
Launch the installer and open the IMAP Migration Tool on Windows. The first click is Open, then the Email Account option.
Folder selection
Fill in the IMAP login details and click Add. A valid email address, a password and the IMAP address with its port number are all that is needed.
Message preview
Four view sections show the mail before the move. Check Inbox, Sent and other folders, then use the search bar to narrow the data.
Selective backup
Filters trim the transfer to wanted mail alone, so the target account stays tidy.
Output options
Click Export and choose an IMAP account or a file format. The data lands in the target with folders intact, and an Open button shows the result.
Before the move
Three short checks keep the move clean.
Account details
Gather Both Logins
Keep the email address and password of source and target at hand, along with the IMAP address and port number. The Find button helps with unknown domains.
Migration scope
Entire mailbox or selection
Move the entire account, or tick folders and set filters for a short run. Empty folders can stay in or out of the transfer.
Target
Choose the Destination
Targets include IMAP accounts, Yahoo, Gmail, Office 365, mail files and document formats. Account targets need sign-in details once.
Turning on IMAP inside Gmail is covered in Enable IMAP in Gmail not showing and Migrate IMAP to Office 365.
Free demo
Try the IMAP Migration Tool Free
Trial mode migrates 10 items per folder. Look over the target mailbox before buying the licence.
Download free demoManual or tool
Mail clients can sync two accounts, but syncing is slow and drops properties. Weigh that manual path against the tool below.
| Task | By hand | Tool |
|---|---|---|
| Cost | Free | $99 one time |
| One folder | Drag between accounts | Works too |
| Entire mailbox | Timeouts on big folders | One migration run |
| Message properties | Often lost | Headers and hierarchy kept |
| Filters | Client rules only | Date, subject, To, content |
| Server address | Looked up by hand | Found with one click |
| Output formats | None | EML, MBOX, PST, PDF and more |
| Server to server | Needs a middle PC | Direct account to account |
Manual syncing works for the first row only.
Saving the mail before a move is covered in Download IMAP emails from server .
Specifications
Download details
System
Supported editions
Windows 11 (64 bit), 10, 8 and 7 in 32-bit or 64-bit, plus Windows Server 2016, 2012 R2 and 2008.
Run the program as Administrator.
Corbett has built Windows email utilities since 2020. Setup trouble and first-run questions reach the support desk.
Working process
Prefer text? The Import EML to IMAP accounts post shows a second way to load mail into IMAP.
Common questions
Steps, login details, attachments and the finished files.
Download and run the IMAP Migration Tool, select Open and add the new IMAP account configuration settings. Enter the IMAP address and port number, then click Export and choose the desired file format or IMAP account.
A valid email address, a valid password and the IMAP address with its port number.
Yes. All mail in the existing IMAP account moves to the new account together with its attachments.
Yes. Your mailbox stays open and usable while the tool runs.
An Open button appears when the migration ends, and it shows the resulting file directly in the tool.
Yes. The Find button detects the incoming server address and the port number of unknown domains. Typing them in works too.
Yes. The tool migrates mail to the same domain or a different one, and works from server to server too.
Yahoo, Gmail, Office 365, iCloud, ProtonMail, GMX, Outlook and many more.
Yes. Set the From and To fields, and only mail from that period is moved. The advanced search bar adds more filters.
Yes. Empty folders can be included or excluded, which keeps the target folder structure clean.
Yes. Headers carry recipient, sender, routing and authentication details along with the mail.
It migrates 10 items from every folder so that the tool can be tested first.
A Personal key covers 2 computers, a Business key 10 and an Enterprise key as many as needed.
Delivered by email after payment, with link and key included.
Yes. Buyers can ask for a refund up to 30 days after purchase.
Step by step
Guides for IMAP settings, downloads and switching providers.
Switching IMAP providers
IMAP setup and downloads
Related migration tools
Hosted account moves use the Email Migration Tool . Server cutovers use the Zimbra Migration Tool. More formats sit with the email converter tool. Broken archives belong with the email recovery software. Free viewing of mail files takes place in the email viewer software. Same family: IMAP Backup Tool and Gmail Backup Tool. Also see the Office 365 Backup Tool, Outlook.com Backup Tool, Yahoo Backup Tool, Thunderbird Backup Tool and Webmail Backup Tool.
User testimonials
Ratings from 696 users who moved IMAP mail through Corbett.
Collected across 696 reviews pulled from portals and emails, shown as written.
We had been looking for IMAP to IMAP data migration after the mergers & acquisition but could not find the solution. We required a system by which IMAP mail could easily be transferred. We had tried multiple times but we left confused. We found a software online that could address our problem. We tried IMAP Migration tool and got the results satisfactorily.
Since our company was shifting to other place, I wanted to migrate my mails to other IMAP account. I tried but could not get the desired results. Luckily, this had become possible only with the IMAP migration tool that you have designed. I feel that it has been customized exactly to meet my needs. I give it a rating of full five. Keep up the good work!
Our organization had gone complete transformation after the COVID-19 pandemic. Therefore, it had introduced new platform ‘G Suite’. Earlier we had been using Lotus Notes. It was needful to migrate mails to the other platform. So, that the work can be managed and it can go uninterrupted. So, I came across the IMAP to IMAP migration software that not only addressed my issues but also satisfied me fully.
Get started
Try the demo on one mailbox first. Full access costs $99 paid once, and a month of refunds is open.
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47.6 MB · Windows 11 and below · 30 days money back