Why your organization needs a secure file exchange solution

It is impossible to imagine our work processes without digital files. While some industries prefer to work with USB sticks, this is a no-go for many organizations. The loss of such a stick can have major consequences if the information it contains is also easily accessible. In addition, there is also plenty of software available that focuses on sending large files.  However, if we look more closely at this, we see that these services often do not comply with the applicable regulations. 

secure sharing

Why you should share large files via email:

  • Speed
    After sending, the recipient receives the files in no time. This will not only save your organization a lot of time but will also increase productivity.
  • Security
    Thanks to zero-knowledge end-to-end encryption, only the authenticated recipient has access to your files - entirely in accordance with the guidelines of the GDPR.
  • Efficiency
    Files can be sent any time of the day, regardless of the time or location of both the sender and recipient.
  •   Overview in the sent files
    Files sent by email can easily be seen in the sent items. This way you keep an overview of all mail traffic and you can always see which files have been sent and to whom.
  •   Stay in Control of Your Sent Files
    When sending large files by mail, there are security options that can retract incorrectly sent files. This includes files that have been accidentally sent to the wrong person and could potentially lead to a data breach.

What is the maximum size when sending large files by email?

  • Outlook: Maximum of 10MB for free accounts and 25MB for paid accounts.
  • Gmail: Maximum of 25MB.
  • G Suite: Maximum of 25MB. For larger files, it is recommended to use Google Drive
  • Yahoo: Maximum of 25MB, which applies to both the email message and the attachment.

This is what makes free services like WeTransfer and Dropbox unsafe


We probably all know them: services such as WeTransfer and Dropbox with which large files can be exchanged. Files up to 20G can be shared via their website, after which the recipient receives an email with the files. Simple? Yes. Fast? Also. Safe? No! We have listed the most important points for you:

  1. No end-to-end encryption, so the files are not sent securely. If these were intercepted during shipment, information could be accessible to unauthorized persons.

  2. No strong security option such as two-factor authentication

  3. No check on the sent files, so any wrongly selected files would not be noticed.

  4. Wrongly sent files cannot be blocked afterwards.

These functionalities assist in the secure transmission of large files

We want to be able to share files securely and easily. But, how exactly does that work and what helps? When choosing a solution that makes it possible to send large files, these functions include:

  • File limit that exceeds the average file size of an email client.
  • The ability to request specific file sizes and types so that you immediately receive the correct files. In a safe way!
  • An extra check on files before the email is sent.
  • Uploadportals where files can be easily uploaded, where files end up directly with the right people / departments.
  • Zero-knowledge end-to-end encryption

What are the benefits of sending files with SmartLockr?

Send large files


SmartLockr How-to

Confirm attachments and recipients before sending

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SmartLockr How-to

Blocking sent emails, files and recipients

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How to send and receive large files securely send with SmartLockr

With SmartLockr you can exchange files in different ways, always with the right security measures:

1. Send large files by email, as an attachment

  •   You can safely send large files. (Large) files can easily be added to your message.
  •   You add your files, SmartLockr ensures the appropriate security. 
  • You can easily exchange files without disrupting your work processes .
send large files via email with SmartLockr

2. Request the correct files with an upload request

File upload request

Do you want to receive the correct files quickly and easily? With an upload request you no longer have to worry about the right flow of incoming documents.

3. Create a secure environment on your website with a web portal

By building a secure portal on your website, people can easily and securely send files to you.

  •   You can receive files quickly and easily.
  •   The web portal can be easily integrated into the website and can be set up in your own house style.
  •   As a sender, it is no longer necessary to add an email address, which excludes sending to the wrong person.
web portal

Retention period: Choose how long you would like the files to be available for.

You can set the amount of time that files will remain available to the recipient for. Files are normally available for 14 days, but this can easily be extended*.
When sending a file, you have the option to restrict its availability. By selecting an extra option on the left-hand side of the menu bar, you can set the time and date after which the attachments can no longer be downloaded.

*Surcharge for cloud version

"The biggest problem we wanted to fix is the security in online communication. Because of the security that is required - when sending and receiving files and documents - we wanted a safe and customer-friendly solution . We found that with SmartLockr. Files can now be easily stored and sent. In addition, it was very easy to implement the software. In less than half an hour we fully installed the SmartLockr application."

- Sander Toussaint, Toussaint Zorg & Inkomen Advies

Our difference

If you choose SmartLockr, you opt for safety and convenience. We make the difference by:


Communicate securely without disrupting your and your employees' work processes. Our solution is very user-friendly, which means that it is actually used.

Increasing awareness

If you, as a user, are more aware of what you are doing, the chance of an error is reduced. This can prevent data from being sent to the wrong person.

Comply with regulations

With the use of SmartLockr, you comply with regulations, like the GDPR. This means that you always work according to the applicable standards, without having to take extra measures.

Send large files securely with SmartLockr

Securely sharing large files is easier than you may think and it's possible from your trusted Outlook environment
Curious? Discover it in a free demo or trial.