Corbett

Kerio Connect Backup Software

Corbett Kerio Connect Backup Software copies mail, contacts, calendars and tasks from a Kerio Connect server to a Windows drive. Output formats include PST, EML, MBOX, MSG, PDF, HTML, CSV and TXT, with transfer to Gmail and Microsoft 365. Free demo included.

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4.6 out of 5 from 683 reviews

Kerio mail goes from your server to your PC only. Corbett never handles it.

Free demo, scanned clean on VirusTotal and a 30 day refund window.

Lifetime licence from $99 Free trial saves 10 emails per folder

Server admin coverage

Kerio Connect Backup Software for Server Admins

Corbett Kerio Backup Software Saves Kerio Mail to Your PC

Admins who change mail platforms need proof that nothing was left behind. Kerio Connect holds mail, contacts, calendars and tasks in one store. Kerio Connect Backup Software writes them to open formats before the server is touched.

Comes across

Mail bodies
Header data
Sent dates
Folder tree
Documents and images
Contacts
Calendars
Tasks

Kerio Connect data

Mail folders
Contacts
Calendars
Tasks
Notes
Contact photos
Custom folders

Saves as

PST
MBOX
EML
MSG
PDF
HTML
CSV
TXT

Kept on the server

Server configuration
User accounts
Domain list
Server logs

Switching platforms starts with a safe copy

Leaving Kerio Connect without a verified copy invites regret. Mail and contacts saved in standard formats let the old server retire with nothing missing. Everything stays on the admin's Windows PC and none of it goes to Corbett.

Kerio to Gmail migration

Related backup pages include Gmail backup tool, Thunderbird backup tool, Outlook.com backup tool, Webmail backup tool and Yahoo backup tool. Any other IMAP account is on the email backup software page.

Core features

Kerio Connect Backup Software on Five Screens

From the first login to the finished backup, in the order the steps happen.

Add account

Add Your Kerio Login Once

Open Email Accounts, choose Add Account and type the Kerio credentials. Corbett completes server address and port itself so nothing else needs typing.

Credentials are added once and the folders list after login. Add several users and queue them together.

Kerio folder tree with item counts and checkboxes

Folder selection

Mark the Kerio Folders for Backup

Open the account and it shows a checkbox tree with a count on every folder. Full servers need bulk mode, while one user who left the company needs only a selective backup.

Every folder and subfolder has a tick box. Original structure is kept on disk and empty folders stay out of sight.

Message preview

Open Kerio Messages Before the Backup

Click a message and it opens in the preview pane beside four analysis tabs. Admins use it to confirm that the right mail is going to disk.

Content shows body and subject, message header lists routing and delivery times, properties state size and files and hex with raw message shows the encoded original.

Kerio filters by date, sender and subject

Selective backup

Filter Kerio Mail Before Export

Filters shrink a big mailbox to the items that matter. Date, sender, recipient and subject can be combined and only selected mail is saved.

Set a start and end date, search sender, recipient or subject text, save only mail with attachments, cap size and filter duplicates. Extract options save addresses and contact photos.

Kerio output format and destination options

Output options

Export Kerio Mail to Any Format

Click Export and select a format. Mail files and document files are on the list, with naming options for output so thousands of items stay searchable by name.

PST, EML, MBOX and MSG for mail clients, plus PDF, HTML, CSV and TXT. Send Kerio mail into Gmail or Microsoft 365 with the email migration tool.

Flexible use

Three Ways to Backup Kerio Connect With One Tool

Kerio Backup Tool handles all three, from one user, a full server or a move to a new platform. Test your job in free demo before you buy.

Backup one Kerio user

Add one login, tick folders and save a PST or PDF copy for a user who left the company.

Backup a full server

Add every user and process the queue in bulk mode. Every account gets a separate file.

Move Kerio mail to a new platform

Name a live Gmail or Microsoft 365 mailbox as the target and mail lands in matching folders.

Before connecting

Kerio Connect Backup Checklist for Admins

Three points to settle before exporting. Go through the short list below to avoid a failed first backup.

Access

Check the credentials

Confirm that the Kerio account login works. Working logins mean Corbett can connect and list the folders.

Storage

Plan the target drive

Mail, calendars and photos add up. Aim the output at a drive with spare room or at a network share.

Scope

Decide bulk or selective

Full servers need bulk mode. One user who left the company needs only a selective backup.

Contacts alone go out with Export Kerio contacts to CSV or Export Kerio contacts to vCard.

Working process

How to Backup Kerio Emails in Four Steps

Follow four steps to get a Kerio mailbox onto your drive. Practice on one folder in free demo.

Install and open the tool

Download the setup, install it on Windows and open Corbett Kerio Connect Backup Software.

Add the Kerio account

Choose Email Accounts, click Add Account and type the Kerio credentials. Server address and port fill in on their own.

Select folders, filters and format

Tick folders, limit by date, sender or subject, then choose PST, MBOX, EML, MSG, PDF, HTML, CSV or TXT.

Start Kerio backup

Press Export and track every folder on the progress screen. You get a log and a CSV report that list all saved mail.

Want screenshots for every click? Follow IMAP backup guide.

Working process

Kerio Connect Backup Software Video

Rather follow screenshots? IMAP backup guide shows a Kerio backup click by click.

Kerio backup software video walkthrough showing folder selection and backup progress

Extra options

More Kerio Connect Backup Features for Admins

Small options that save hours on a server with many users.

Bulk and selective

Full server or one user

Server details filled in

Address and port come from the login

Several users queued

One separate file per account

Counts per folder

Tally beside every folder

Date range filter

Frame the backup with start and end dates

Sender and subject search

Look up by sender, recipient or subject

Attachment filter

Only mail with files attached

Size limit

Pull the heaviest mail first

Duplicates dropped

Leave out junk and repeated copies

Resume on drop

Broken connections resume, not restart

Folder, USB or NAS

Save to a folder, USB drive or network share

Log and CSV report

Proof of what was saved

Choose output

Kerio Backup Formats and Where They Open

Eight output formats are on offer. Match the format to what you plan to do with the saved mail.

Format	Best for	Opens in
PST	Outlook users and mail that goes back to an account	Microsoft Outlook
MBOX	Moving mail to a free email client	Thunderbird and Apple Mail
EML	One file per email, searchable by name	Windows Mail and most email clients
MSG	Single messages kept as Outlook items	Microsoft Outlook
PDF	Printing and reading without Outlook	Any PDF viewer
HTML	Reading mail with no email client	Any web browser
CSV	Lists of senders, dates and subjects	Excel and Google Sheets
TXT	Plain text archives of old messages	Any text editor

Free demo

See Kerio Backup Tool Work on One Account

Install the demo, add a Kerio login, tick one folder and choose a format. Files appear only after the backup starts.

Download free demo

Try before you buy

Free Demo vs Full Kerio Connect Backup Software

Free demo signs in with a Kerio login, shows every folder, applies every filter and previews mail. Only saving is capped.

Feature	Free demo	Full version
Kerio login and folder list	Yes	Yes
Preview, filter and analysis views	All available	All available
Emails saved per folder	10	Unlimited
Mailbox size limit	Saving stops at 10 per folder	None
Price	Free	$99 one time
Machines per licence	Not applicable	Up to 5
Money back window	Not applicable	30 days

Download free demo Purchase now

Use cases

Who Needs Kerio Connect Backup Software?

Anyone who looks after a Kerio Connect server or its users.

Server admins

Save every user mailbox in open formats before the server is changed or retired.

IT teams with leavers

Save mail from a user who left the company in a selective backup.

Teams changing platforms

Copy first, then move to Gmail or Microsoft 365. One licence installs on up to 5 machines.

Why Corbett

Why Choose Corbett Kerio Connect Backup Software?

One licence

Works with Kerio and 209+ other providers

No subscription

Lifetime price from $99

Read only access

Nothing is deleted in Kerio

Direct connection

No Corbett server in between

Eight formats

Plus move to a new inbox

No size limit

Any mailbox size or message count

Free demo

10 emails saved per folder

30 day money back

Refund window on every licence

Before purchase

Manual Copy vs Kerio Connect Backup Software

Admins can drag mail into a desktop client or export one user at a time. That route is slow for a server with many users.

Task	Manual copy	Kerio Connect Backup Software
Price	No licence fee	$99 one time
One user	Manageable	Just as good
Many users	Slow repeat work	Bulk mode
Contacts and tasks	Separate exports	Saved with the mail
Contact photos	Dropped by most exports	Extracted with the data
Output choice	Client formats only	PST, PDF and six more
Folder hierarchy	Flattened	Original structure kept
Headers and raw source	Buried behind a menu	Full view of any message before it is saved

Rows tinted green are where manual copy is enough.

One user can be copied by hand. For many users, contacts and tasks or a Gmail move, Kerio Backup Tool saves time.

See Kerio to Gmail migration. You can convert a finished file to other formats with the email converter tool.

Global recognition

Kerio Connect Backup Software Users Trust

Users rate Corbett backup software 4.6 out of 5 across 683 reviews and software directories list it.

CNET
Download.io
UpdateStar
TopSoftware Advisor
SaaSHub
Uptodown

Specifications

Kerio Connect Backup Software Specifications

Windows Versions Supported by Kerio Connect Backup Software

Download details

Released: Dec 2020
Download size: 87.4 MB
Trial limit: 10 emails per folder
Delivery: Download link and key by email
Licence: Lifetime, up to 5 machines

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System

Hard disk: 150 MB to install, plus room for output
RAM: 4 GB minimum
Processor: 1 GHz, 2.4 GHz advised
Rights: Run as Administrator
Account: Kerio login

Supported editions

Windows 11, 10, 8.1, 8 and 7, in 32 and 64 bit. Windows Server 2025 down to 2008. Outlook is not required.

No macOS or Linux build.

Corbett has built Windows email utilities since 2020. Support for Kerio Connect Backup Software is handled by the team that wrote it.

Full specification

Kerio Backup Sources and Output Formats

Full source and output list for Corbett Kerio Connect Backup Software.

Goes in

Kerio account sources

Mail source: Kerio Connect server mailboxes
Login: Kerio account credentials
Server: Address and port filled in from the login
Item types: Emails, attachments, contacts, calendars, tasks and notes
Folders: All mail folders and custom folders
Accounts per session: Several, queued one after another
Mailbox size limit: None, no file size limit
Access mode: Read only, nothing deleted in Kerio
Filters: Dates, sender, recipient, subject, attachment, size
Local files opened: PST, OST, MBOX, EML, EMLX, MSG

Comes out

Backup destinations

Client formats: PST for Outlook, MBOX for Thunderbird, EML, MSG
PST options: Unicode PST, split by size, merge accounts into one PST
Save locations: Folder, USB drive, network share
Document formats: PDF, HTML, CSV, TXT
Contacts: vCard and CSV next to the mail
Inbox destinations: Gmail, Microsoft 365 or any IMAP server
Separate extraction: Email addresses and contact photos
If your line drops: A broken connection resumes
Reports: Live progress, log and CSV report
Restoring mail: Email Recovery Software

Convert saved files later with email converter tool or single format PST File Converter Tool, MBOX File Converter and EML Converter Tool. Move a Kerio server to a new provider with Kerio Migration Tool or IMAP Migration Tool. Open a saved file without exporting with free email viewer software.

User testimonials

Kerio Connect Backup Software Reviews From Users

Drawn from 683 reviews of the Corbett wizard behind Kerio Connect Backup Software.

4.6 out of 5

Pulled from 683 reviews on rating sites and customer emails. Below are three, quoted exactly.

Stand alone application

I wanted to backup my emails because of the decision to change the email service. This Kerio Backup tool helped me a lot with the same and I was able to do it efficiently. It's a stand alone application in the market.

Wilson Cardone

Backup without data loss

Corbett Kerio Mailbox Backup tool became a supportive hand and helped me go through the entire backup process without any data loss. I will definitely recommend this software to my friends.

Donald Mathew

Bulk contacts in seconds

My boss gave me the task to extract bulk contacts from the Kerio Emails. I was devastated by the situation that how can I do. But by using Kerio mail server Backup tool. My work was completely done within a few seconds.

James Charle

Best practice

How to Keep Your Kerio Backup Safe

Saved mail is only useful if it opens later. These four habits protect your Kerio archive.

Copy before you retire

Save every mailbox before the Kerio server is changed or switched off.

Open a sample file

After saving, open a handful of messages. Confirm folders, contacts and attachments came across.

Save PST and PDF

Repeat the backup with a second format. PST for Outlook and PDF for reading anywhere is a common pair.

Store a copy elsewhere

Store one copy on a drive and one on a USB drive or network share, named by user and date.

Common questions

Kerio Connect Backup Software FAQs

Steps, attachments, live use and install.

How are Kerio emails saved to backup?

Install the tool and open Email Accounts. Click Add Account, enter the Kerio credentials, then click Export and choose a format.

Are attachments saved with Kerio mail?

Yes. Documents, images and other attached files are saved with the messages.

Can Kerio be used during the backup?

Yes. Mail continues working while the backup is in progress, since the tool only reads the mailbox.

How is the tool installed?

Download the setup file, open it and finish the install prompts. No technical skills are needed.

Can contacts and tasks be saved?

Yes. Contacts, calendars and tasks come out with the mail.

Can addresses and photos be extracted?

Yes. Extract options save email addresses and contact photos.

Which output types exist?

PST, EML, MBOX and MSG for mail clients, plus PDF, HTML, CSV and TXT for documents.

Does a file size limit apply?

No. Backup has no file size limit.

Which Windows editions are supported?

Windows 11 and 10, plus all lower versions down to Windows 7. Windows Server 2008 and newer work.

Does it send mail to Gmail or Microsoft 365?

Yes. Hand mail over with the email migration tool. For a server cutover, use the Kerio Migration Tool.

What does the free edition do?

Corbett logs in, lists every Kerio folder, opens the preview and filters. Saving stops at 10 messages per folder, enough to check the result.

What is the Kerio licence fee?

One payment of $99 buys a lifetime licence for up to 5 machines, with a 30 day refund window.

Does it support bulk backup?

Yes. Bulk and selective backup are both supported.

Does the tool need the server address?

No. Server address and port come from the login.

Is a Mac build available?

No. Corbett works on Windows only.

Does my Kerio mail pass through Corbett's servers?

No. Your PC connects to the Kerio server and writes the backup to your drive. Corbett never touches the mail.

Can I save one user who left the company?

Yes. Use selective mode, tick that user's folders and filter by date or sender if needed.

Does the tool delete mail from Kerio?

No. Corbett only reads the mailbox. Retire or clean the server yourself once the archive is checked.

Can I move Kerio mail to Thunderbird?

Yes. See Transfer Kerio emails to Thunderbird or save MBOX and open it there.

Can I get Kerio mail into Outlook?

Yes. Save a PST. Steps are in Export Kerio mailbox to PST.

Can I open a saved file without Outlook?

Yes. Open it read only in the free email viewer software.

Is there a free Kerio backup demo?

Yes. Corbett signs in, shows every folder and applies every filter. Saving stops at 10 messages per folder.

Step by step

Kerio Connect Reading List and Related Tools

Guides for Kerio mail, contacts and moves.

Mail moves

Export and convert

Contacts

You find the full list of providers on the email backup software page. Server cutovers use the Kerio Migration Tool or IMAP Migration Tool and putting saved mail back into an inbox uses email recovery software. Related backups include Gmail backup tool, Outlook.com backup tool, Yahoo backup tool, Hotmail backup tool, iCloud backup tool, Thunderbird backup tool and Webmail backup tool.

Get started

Copy Kerio Connect Before the Server Goes

Get the demo, add a Kerio login and save sample mail from every folder. You pay $99 once for a lifetime licence and have 30 days to ask for a refund.

Download free demo Purchase now

87.4 MB · Windows 11 to 7 and Windows Server 2025 to 2008 · 30 day money back