FAQ

Frequently Asked Questions

Everything you need to know about MailLighter. Can't find the answer? Contact us.

General

What is MailLighter?

MailLighter is an Outlook plugin that cleans your emails in one click. It removes unnecessary attachments, embedded images, and old reply chains to make your emails lighter and reduce your digital footprint.

Is MailLighter free?

MailLighter is completely free.

Who is MailLighter for?

MailLighter is designed for any individual or organization that wants to reduce the environmental impact of its emails: individuals, private companies, public organizations, IT departments, CSR teams, or any actor committed to responsible digital practices.

Installation & Compatibility

How do I install MailLighter?

MailLighter is available on the Microsoft Marketplace. Follow this link and install MailLighter directly into your Outlook environment.

Which versions of Outlook are supported?

MailLighter is compatible with Microsoft 365 environments, including Outlook desktop and Outlook on the web, on Windows or macOS.

Can I deploy MailLighter across my entire organization?

Yes. MailLighter can be deployed at scale through your Microsoft 365 admin center, making it easy to roll out to all users in your organization.

Does MailLighter require any special configuration?

No. MailLighter works out of the box with no configuration needed. Each user simply clicks the MailLighter features in the Outlook ribbon to clean their emails.

Features

What does MailLighter remove from emails?

MailLighter can remove unnecessary attachments, embedded images (logos, banners, signature images), and old reply chains, keeping only the most recent messages in a thread. MailLighter can also remove everything that was not selected by the user, allowing them to keep only the essentials of the original email.

Does MailLighter modify the original email?

MailLighter cleans the content of the reply or forward email while it is being composed and before it is sent. The original received email remains unchanged in your mailbox.

Security & Privacy

Is my data safe with MailLighter?

Yes. MailLighter processes emails locally within your environment. No email content is sent to external servers.

Is MailLighter GDPR compliant?

Yes. MailLighter is fully GDPR compliant. It does not collect, store, or transmit any personal data or email content.

Does MailLighter impact my organization's security?

No. MailLighter operates within the standard Microsoft 365 security framework and does not require any additional permissions beyond what is needed to process email content.

Impact & CSR

How does MailLighter help with CSR reporting?

MailLighter provides a concrete action for organizations working on CSR/ESG. By reducing email weight across your organization, you demonstrate operational commitment to digital sobriety. The current version of MailLighter does not yet collect the data needed to produce an energy savings report. If this feature interests you, let us know via our contact page.

What is the environmental impact of lighter emails?

Every lighter email means less data stored and replicated on servers, less bandwidth consumed, and less energy and raw materials used. The individual impact is modest, but it becomes significant when everyone adopts the practice.