Corbett

Zimbra Migration Tool

Corbett Zimbra Migration Tool opens Zimbra files on Windows and moves mail to PST, EML, MBOX, PDF, Gmail or Office 365. Folders and attachments stay intact. Try free demo first.

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4.6 out of 5 from 683 reviews

Works offline on your PC. Corbett never sees your Zimbra mail.

Free demo, scanned clean on VirusTotal and a 30-day money-back window.

Lifetime licence from $299 Demo migrates 10 emails per folder

Migration scope

Zimbra Migration Tool for Zimbra Mail on Windows

Zimbra Migration Tool Saves Mail for Any Target

Zimbra exports a mailbox as a compressed TGZ file, and a TGZ file does not open in most mail programs. Zimbra migration tool opens your Zimbra TGZ files on Windows and saves mail as PST, EML, MBOX, PDF or HTML, or sends it to Gmail, Office 365 and IMAP.

Kept in output

Email body and headers
Attachments
Sender and receiver
Dates and subjects
Folder tree

Zimbra input

Zimbra TGZ files
Mailbox folders
Calendars and contacts
Tasks and notes

Outputs

PST
EML
MBOX
PDF
HTML
TEXT and CSV
Gmail
Office 365
IMAP
Thunderbird

Not needed

Mailbox passwords
Extra software
Upload to Corbett
Subscription

Where Zimbra keeps your mail

Zimbra REST API export mailbox reference lists zip, tar and tgz as export formats, and the tgz format is a compressed TAR file. Zimbra Migration Tool opens those TGZ files and saves your mail where you need it.

Import Zimbra TGZ to Outlook

Related pages: MDaemon Migration Tool, Kerio Migration Tool, CommuniGate Migration Tool, Zimbra Backup Tool and IMAP Migration Tool. Other mail files sit on email converter tool page.

Core features

Zimbra Migration Tool Features by Screen

Five screens of Corbett Zimbra migration tool, in migration order.

Open menu with Email Servers submenu listing MDaemon, Kerio, CommuniGate and Zimbra files

Source files

Open Zimbra Files from Email Servers

Select Open, then Email Servers, then Zimbra Files. The wizard loads your Zimbra mail into its panel.

Zimbra mailbox export files use the TGZ format. Keep your TGZ files together in one folder, so the wizard loads them in a single step.

Folder picker titled Please choose folder(s) which contains Zimbra File(s) with a Zimbra Mailbox Data folder selected

Batch loading

Choose the Folder That Holds Your TGZ Files

A folder picker opens. Select the folder with your Zimbra TGZ files and press Select Folder.

Every Zimbra file in that folder loads together, so one session covers many mailboxes.

Mail preview with content, message header, hex view and raw message tabs and an attachment menu

Message preview

Preview Zimbra Mail Before You Migrate

Click any message and a reading pane opens beside four tabs. Content shows the body, Message Header lists the sender and routing data, Hex View shows stored bytes and Raw Message shows the source.

Right click an attachment for Open, Save or Save All, so you check files before migration starts.

Advance Search panel with Search In choices, a From and To date, and the Export Options panel

Filters

Filter Zimbra Mail by Item and Date

Advance Search lets you search in All, Emails, Calendars, Contacts, Tasks or Notes and set a From and To date. Press Find and tick only the folders you want to move.

Reset clears your filters, and folders you leave unticked stay out of the job.

Export menu with email file, document file, email service and email client formats

Output formats

Select Your Zimbra Migration Target

The Export menu groups targets. Email Files hold EML, MBOX and PST. Document Files hold PDF, HTML, TEXT and CSV.

Email Services hold Gmail, Office 365 and IMAP, and Email Clients hold Thunderbird. Select a service, sign in to the target account and your mail lands there instead of in a file.

Working process

How to Migrate Zimbra Mail in Four Steps

Four steps take your Zimbra mail to its target. Try them on a few folders in free demo first.

Open Zimbra files

Start Zimbra migration tool, select Open, then Email Servers and Zimbra Files. Choose the folder that holds your Zimbra files.

Preview and select mail

Your Zimbra folders load as one tree. Click any email to preview it, then tick the folders you need.

Filter and choose a target

Use Advance Search to limit the job by item type and date. Select Export, then PST, EML, MBOX, PDF, Gmail, Office 365 or another target.

Save or send your mail

Set options, select Browse for a folder and press Save. For Gmail or Office 365, sign in to the target account first.

Moving mail to a mailbox is covered in Import Zimbra TGZ to Gmail and Zimbra to Office 365 migration tool.

Working process

Zimbra Migration Tool Video Walkthrough

Prefer text? Open Import Zimbra TGZ to Outlook for every click with screenshots.

Advanced options

More Zimbra Migration Tool Features for Big Jobs

Small options that save hours when you migrate Zimbra mail in bulk.

Folder hierarchy

Output follows your Zimbra folder tree

No file size limit

Any Zimbra size and mail count

Four preview tabs

Content, header, hex and raw message

Advance Search

Item type plus From and To dates

Quick search

Find mail by keyword before export

Attachment menu

Open, Save or Save All from preview

Contacts and calendars

CSV, vCard and ICS saving options

Empty folders option

Keep the full tree, even with no mail

Cloud targets

Send mail to Gmail, Office 365 or IMAP

USB and NAS targets

Save output to external drives and network storage

Thunderbird target

Send Zimbra mail to Thunderbird

Error logs

Show Error Logs in Export Options

Output formats

Zimbra Migration Tool Output Formats

Zimbra migration tool saves mail as files or sends it to mailboxes. Match your target to where your mail will open.

PST

A file Outlook opens

EML

One file for every message

MBOX

One file per folder for Thunderbird and Apple Mail

PDF

Readable pages for filing and records

HTML

Messages that open in any browser

TEXT and CSV

Plain text and sheets of mail details

Gmail, Office 365 and IMAP

Mail lands in the target mailbox

Thunderbird

Mail goes straight to the client

Free demo

Test Zimbra Migration Tool on Real Zimbra Files

Install free demo, open your Zimbra files and choose a target. Free demo migrates 10 emails per folder, so your output is quick to check.

Download free demo

Try before you buy

Free Demo vs Full Zimbra Migration Tool

Free demo of Zimbra migration tool opens, previews and searches your Zimbra files. Only migration is capped.

Feature	Free demo	Full version
Open Zimbra files and folders	Yes	Yes
Preview and search	All available	All available
Emails migrated per folder	10	Unlimited
Zimbra size and mail count	Migration stops at 10 per folder	No limit
Price	Free	From $299 one time

Use cases

Who Needs a Zimbra Migration Tool?

Anyone who holds mail in Zimbra and needs it somewhere else.

IT admins

Move Zimbra mailboxes to Office 365 or Gmail when you retire your server.

Teams switching platforms

Save Zimbra mail as PST, so your team opens it in Outlook.

Legal and compliance teams

Save mail with headers and attachments intact for review and discovery.

Archive keepers

Save old Zimbra mail as PDF or EML files that any program opens.

Owners of a retired server

Open mail from a Zimbra store you no longer host.

Selective movers

Search by item type and date, then move only matching mail.

Why Corbett

Why Choose Corbett Zimbra Migration Tool?

No subscription

Lifetime price from $299

Works offline

No sign-in and no upload

Originals stay safe

Zimbra files stay as they were

envelope-fill

No mailbox passwords

No size limit

Any Zimbra size and mail count

Folders kept

Folders and subfolders stay in order

Smart search

Name, subject, To, From and content

30-day refund

Money-back window after purchase

Before migration

Zimbra Migration Tool Scope and Limits

Zimbra migration tool opens Zimbra files and moves mail to files or mailboxes. Here is what that covers and where it stops.

Capability	Supported	What it means
Zimbra to files	Yes	PST, EML, MBOX, PDF, HTML, TEXT and CSV
Zimbra to mailbox	Yes	Gmail, Office 365 and IMAP sit in the Export menu
Folder tree	Kept	Output follows your Zimbra folders
Item types	Searchable	Advance Search covers emails, calendars, contacts, tasks and notes
Source Zimbra files	Stay as they were	Output goes to a folder or mailbox you choose
Licence	Business or Enterprise	Email Servers sit outside the Personal licence
Mac and Linux	No	Zimbra migration tool installs on Windows only

Manual route or tool

Zimbra Migration Tool vs Manual Route

Zimbra documents an export through its REST interface. Here is where that stops, and where Zimbra migration tool takes over.

Job	Manual copy	Zimbra migration tool
Cost	Free	From $299 one time
Opening a TGZ file	Unpack the compressed archive by hand	Open TGZ files and preview mail
Finding one email	Search unpacked files by hand	Preview and search by keyword
Moving to another platform	Export only gives you the TGZ file	Gmail, Office 365 and IMAP targets
Folder tree	Rebuild by hand in another client	Folders load as one tree
PST or PDF output	Not offered	Saved from the Export menu
Search before export	Search text by hand	Advance Search by item type and date

Manual export steps come from Zimbra REST API export mailbox reference. Request your mailbox with fmt=tgz and save the file.

Global recognition

Zimbra Migration Tool Software Users Trust

Users rate Corbett Zimbra migration tool 4.6 out of 5 from 683 reviews, and these software directories list it.

CNET
Download.io
UpdateStar
TopSoftware Advisor
SaaSHub
Uptodown

Specifications

Zimbra Migration Tool Specifications

Download details

Download size: 87.4 MB
Demo limit: 10 items per folder
Delivery: After payment, mail arrives with a download link and a licence key.
Licence: Personal: 5 machines. Business: 25 machines. Enterprise: 100 machines. Lifetime validity.

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System

Hard disk: 150 MB of free space
RAM: 4 GB of memory minimum
Processor: 1 GHz Intel Pentium minimum and 2.4 GHz advised
Interface: English
Input: Zimbra files

Supported editions

Windows 11 (64 bit), 10, 8 and 7 in 32-bit or 64-bit, plus Windows Server 2016, 2012 R2 and 2008.

Start Zimbra migration tool with administrator rights.

Corbett has built Windows email utilities since 2020. Setup trouble and first-use questions go to our support desk.

User testimonials

Zimbra Migration Tool Reviews

Zimbra migration tool shares 683 reviews on software index sites and customer feedback.

4.6 out of 5

Collected across 683 reviews from software indexes and customer feedback. Three reviews below are unedited.

A safe and quick method

A safe and quick method for migrating Zimbra databases in various formats. I have a bundle of emails stored in my Zimbra account and want to store them in PDF format, and this ZCS Migration wizard meets my expectations.

Mike Stegner

Stuck with the manual solution

I tried a manual solution to migrate Zimbra data files, and I got stuck somewhere. After searching a lot, I come across this Zimbra Converter Tool. This Zimbra Migrator makes the data transfer process more reliable and delivers accurate results.

Michael Corner

Easy for a non-technical user

Being a non-technical user, I can go through the data transfer process thanks to the Zimbra Migration Tool . This wizard helps me maintain the Structure on disk and complete the entire migration process in a few minutes.

James Mercado

Before migration

Prepare Your Zimbra Files for Migration

Three short checks keep your Zimbra migration clean.

Make a Zimbra copy

Back up your Zimbra store before you start. A spare copy keeps your original safe.

Choose all mail or chosen items

Move every folder at once, or limit the job to the folders and item types you need.

Leave space for output

PST and PDF output needs free room on the destination disk, and one PST for every folder keeps files small.

Zimbra files need the Business or Enterprise licence. Compare plans on the Corbett buy page.

Best practice

How to Keep Your Zimbra Migration Safe

A migration only helps if your mail arrives complete. Four habits keep your data safe through it.

Back up first

Copy your Zimbra store before you start. Keep 3 copies on 2 types of media with 1 copy off site.

Start with one mailbox

Migrate one small Zimbra folder and open a few emails in your target. Catch a wrong setting before a large job.

Check the count

Compare the message count in the folder tree with the mail in your target before you close the job.

Keep originals until checked

Store your Zimbra data until counts match. Delete it only after you open migrated mail.

Common questions

Zimbra Migration Tool FAQs

Zimbra migration tool steps, formats, limits and licence answers.

What is Zimbra migration tool?

Zimbra migration tool opens Zimbra files on Windows and moves your mail to files or mailboxes. Corbett Zimbra Migration Tool saves PST, EML, MBOX, PDF, HTML, TEXT and CSV, or sends mail to Gmail, Office 365 and IMAP.

How do I migrate Zimbra mail?

Select Open, then Email Servers and Zimbra Files, and choose the folder that holds your Zimbra files. Preview your mail, select Export, choose a target and press Save.

What file does Zimbra export?

Zimbra REST API export mailbox reference lists zip, tar and tgz as export formats, and tgz is a compressed TAR file. Zimbra Migration Tool opens the TGZ files.

Which licence opens Zimbra files?

Zimbra sits under Email Servers, and Email Servers are part of the Business licence at $299 and the Enterprise licence at $499. The Personal licence does not list Email Servers as a source.

Can Zimbra migration tool save Zimbra mail as PST?

Yes. Select Export, then PST under Email Files. The individual PST option creates one PST file for every folder.

Can Zimbra migration tool move Zimbra mail to Gmail or Office 365?

Yes. Gmail, Office 365 and IMAP sit under Email Services in the Export menu. Sign in to the target account and your mail lands there.

Can Zimbra migration tool send mail to Thunderbird?

Yes. Thunderbird sits under Email Clients in the Export menu.

Can I migrate only some Zimbra folders?

Yes. Tick the folders you need, or use Advance Search and move only matching mail.

Can I filter Zimbra data by item type and date?

Yes. Advance Search covers All, Emails, Calendars, Contacts, Tasks and Notes, with a From and To date.

Does Zimbra migration tool keep attachments?

Yes. Attachments stay with every message, and the preview menu lets you open or save them before migration starts.

Does Zimbra migration tool keep my folder tree?

Yes. Output follows the order of your Zimbra folders, and the Create empty folders option keeps folders that hold no mail.

Can I preview Zimbra mail first?

Yes. Click any message and four tabs open, named Content, Message Header, Hex View and Raw Message.

Can Zimbra migration tool save Zimbra calendars and contacts?

Yes. ICS, CSV and vCard sit among the saving options, and Advance Search limits a job to calendars or contacts.

Does Zimbra migration tool have a size limit?

No. Zimbra migration tool sets no size cap. Keep free disk space for your output.

Can I export a Zimbra mailbox by hand?

Yes. Zimbra REST API export mailbox reference shows the fmt=tgz request that downloads a mailbox. That route gives you a TGZ file only, with no PST, PDF or Gmail target.

Will Zimbra migration tool change my Zimbra files?

No. Output goes to a folder or mailbox you choose, and your Zimbra files stay where they were.

Does my Zimbra data pass through Corbett?

No. Migration happens on your PC with no upload to Corbett. Corbett never sees your Zimbra mail.

How many emails can free demo migrate?

Free demo opens your files, shows every folder and gives you every search and preview. Migration stops at 10 emails per folder, enough to test your output before you buy.

Which Windows versions work?

Windows 11 (64 bit), 10, 8 and 7, plus Windows Server 2016, 2012 R2 and 2008. There is no macOS or Linux build, so copy your Zimbra files to a Windows PC.

How many PCs does one licence cover?

Business covers 25 machines for $299 and Enterprise covers 100 for $499. Both are one time payments with lifetime validity and 24/7 support. Personal covers 5 machines for $99 and does not list Email Servers.

Is there a refund?

Yes. Request a refund within 30 days of purchase. See the refund policy for details.

Can Zimbra migration tool open files from MDaemon, Kerio or CommuniGate?

Yes. MDaemon Files, Kerio Files and CommuniGate Files sit beside Zimbra Files under Email Servers, so one wizard covers all four. See MDaemon Migration Tool, Kerio Migration Tool and CommuniGate Migration Tool.

Zimbra guides

Zimbra Migration Tool Guides for Common Jobs

Every page below covers one Zimbra job and answers questions it raises.

Zimbra to webmail

Zimbra to Outlook and Thunderbird

Zimbra users and addresses

Other server pages cover CommuniGate Migration Tool, MDaemon Migration Tool and Kerio Migration Tool. Save a copy first with Zimbra Backup Tool. Account moves use Email Migration Tool or IMAP Migration Tool. Other mail files sit on the email converter tool page, broken archives belong with email recovery software and email viewer software opens saved mail free.

Get started

Migrate Zimbra Mail Today

Test Zimbra migration tool on a spare Zimbra copy first. Zimbra files need the Business licence at $299 or Enterprise at $499, and refunds are open for 30 days.

Download free demo Purchase now

87.4 MB · Windows 11 to 7 and Windows Server 2016 to 2008 · 30 day money back