Large-Scale Email Migration With no Lost Data
How Credit Suisse, Harvard University and HP migrated millions of emails quickly, reliably and accurately
If you need to process less than 20 user accounts, please visit our regular “Email Migration” page.
Migrate Any Way You Like
Fast, Easy and Automated
Install Aid4Mail anywhere you like, and as many times as you need, to migrate your users quickly and efficiently. Deploy it on servers, end-user computers, USB flash drives, or a combination of the three: the choice is yours. You can also choose to use the following options to execute your email migration:

Console Launcher
Migrate your users 5x faster by processing multiple email accounts at once with the Aid4Mail Console Launcher.

Command-Line
Use the Aid4Mail Console for unlimited scripting, automation and integration possibilities.
The Aid4Mail Console Launcher is a utility to assist with large-scale email migrations.
Working alongside the Console (CLI) version of Aid4Mail, the Console Launcher manages, schedules and monitors your large-scale migration.
Included with all purchases of Aid4Mail Migrator, the Console Launcher offers the following benefits:
Process multiple accounts simultaneously from one CSV file
Simply fill out the CSV template provided with your migration settings and user details, then open and run it in the Console Launcher.
You can even perform migrations with multiple source and target locations, all in one session.
Easily schedule your migrations
Choose to schedule your email migration over the weekend, or in the evenings, to reduce down-time and increase productivity.
Encrypt your users’ sensitive information
Protect your users’ login information. Encrypt their passwords and login credentials before sharing the CSV file with other team members.
Unlimited potential with our Command-Line Interface
Do you have advanced requirements that call for the utmost flexibility? Aid4Mail Console is also included with your purchase of Aid4Mail Migrator. The Console offers a command-line interface (CLI) with unlimited scripting and integration possibilities.
Need some help? We can provide you technical assistance for your project. Just let us know what you want to achieve.

End-User
Deploy and install the user-friendly Aid4Mail Wizard directly on each user’s computer so your users can migrate themselves.
Empower your team to migrate their own mailboxes
Do you want your end-users to manage their own migration? Aid4Mail can run from each end-user’s computer and offers users a friendly wizard- style interface (GUI) that even the least tech- confident person in your workplace will use easily.
Comprehensive context-sensitive instructions - included at every step of the way - provide all the info your end users need to complete their migration smoothly.
Monitor Your Migration Remotely
Benefit from the convenience of a cloud-based solution, with the security of an on-premise migration tool.
- Track your migration progress, no matter how or where you run Aid4Mail.
- Login on your phone, tablet or computer for a full progress overview, even if you’re on the go.
- Get instant statistics, resolve errors, and see how many sessions you have left. All from a single portal.
Here's Why You Should Choose Aid4Mail for Your Migration

Save time, with its fast conversion engine and automated processing options.

Total flexibility, install it on any number of servers, USB flash drives and computers.

Save money, thanks to its competitive pricing.
Skip to pricing »

Satisfaction guaranteed, thanks to our speedy support and quick fixes if issues arise.
Not all email conversion tools are made equal. Click here to see how conversion quality differs between competing tools.
Email conversion is complex and requires a lot of expertise to create an accurate tool.
But you can have complete peace of mind with Aid4Mail. We’ve been developing our know-how since 1999 and it shows. Aid4Mail is so reliable and accurate that it’s a favorite tool in the computer forensics community.
So when you choose Aid4Mail for your migration, you know you’re going to get a great result.
Data security consistently ranks within the top concerns for large companies and organizations.
Particularly now with the prevalence of cloud-based migration solutions, it’s difficult to know exactly how and where your data is being stored. Or whether your data is going through servers based in locations, and owned by companies you trust.
With an on-premise migration tool like Aid4Mail, you don’t have to worry about who has access to your email. Unlike cloud services, and some other on-premise tools, we send no data back to our servers.
So you can rest assured knowing you are in complete control of your data.
Download our whitepaper Migrating Corporate Email: 7 Things to Look for in a Migration Tool to learn more about essential requirements for any migration solution.
Migrate 16,000+ Emails Per Account Every Minute
Install Aid4Mail this Friday afternoon, and by the time you return to the office on Monday morning, you could have as many as 45,000,000 emails migrated. Start by using this calculator to estimate your migration time…
Average processing speed:
Undefined
(*) These tests were performed on a 5-year old PC with a Quad-Core Intel Xeon processor under the 64-bit edition of Windows 7 and the 32-bit edition of Outlook 2010. Internet speed was 75 Mbit/s for downloads and 7 Mbit/s for uploads.
DISCLAIMER: your results may vary significantly from ours. Many factors influence processing speed.
Download our Large-Scale Migration Throughput Formula for a more accurate estimate.
Supports 40+ Email Formats and All Popular Cloud Services
Migrate your email to Office 365 or G Suite (previously Google Apps), or to Outlook and Exchange. Aid4Mail is the ideal solution for large corporations, government agencies and universities.
With some customers migrating over 60,000 email accounts to Office 365, you can be sure Aid4Mail is a proven, enterprise grade email migration solution.
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Is your messaging system not listed above? See all supported formats.
Aid4Mail is faster and more secure than cloud-based solutions
Migrating your mail from Outlook to Office 365, or from Thunderbird to G Suite (previously Google Apps)? An on-premise solution like Aid4Mail is faster and more secure than a cloud-based solution.
- Data security: Your data is going from your own servers and computers, directly to your chosen email provider. There are no middle-men servers in undefined locations to compromise the security of your sensitive data.
- Faster conversion: With Aid4Mail, the mail conversion is done on premise and then uploaded. With cloud vendors, your mail is uploaded, converted and only then sent to your new email provider. You save a whole step with Aid4Mail.
- Complete control: Know exactly what is happening with your migration every step of the way. Mitigate any issues as they arise, instead of after all your mail has already been migrated.
Download our whitepaper Migrating Corporate Email: What to Resolve Before You Start to learn more about how to perform cloud migrations.
Aid4Mail Has Successfully Migrated Millions of Mailboxes Worldwide
Aid4Mail has been downloaded more than 100,000 times for small and large-scale needs. Built and supported in Switzerland, Aid4Mail is used in 120+ countries.
QUICKLY MIGRATED THOUSANDS OF USERS
“Most of the conversions took less than half an hour. This meant the users were more willing to do the export and move to the new system as it didn’t mean too much time for them without their computer.”
– Maxime Callens, Médecins Sans Frontières [ Read our MSF Case Study ]
RELIABLE AND SCALABLE
“Aid4Mail is a spectacular product. I don't think people realize how hard it is to reliably convert email from one format to another, and then do it at scale the way you do. It really is quite an accomplishment.”
– Matt Coan, Sonian [ Read our Sonian Case Study ]
Read more customer testimonials »
SMOOTHLY MIGRATED 1000S OF MAIL STORES
“Using Aid4Mail for our data migration from thousands of IMAP mail stores to the MS Live [Office 365] environment, the process has been smooth and fast.”
– Peter Hopkin, University of London
NO CRASHING OR SPUTTERING
“I was also fascinated with the fact that Aid4Mail churned through my mail without crashing, stuttering, or spitting out any error messages: it just simply did the job.”
– Chris Jenkins, Implexant Systems
NO JOB IS TOO SMALL OR TOO LARGE
“We work with over 1TB [one terabyte] of email per month and your Aid4Mail product has shown to be an integral part of our toolset for dealing with these volumes of email.”
– Jason Rappoport, Capsicum Group
Get a Consultation
Contact us for a no-obligation consultation. We can show you the program, discuss your needs and propose the right solution for you.
Just fill out our contact form and we’ll get back to you within 24 hours on business days. We look forward to hearing from you!
Contact Us Or Get Started Now With a Free Trial