Deploy thousands of email signatures in 3 clicks with the Letsignit Add-in for Outlook!

The Letsignit Add-in: the 1st email signature add-in for Outlook co-developed directly with Microsoft R&D teams!

With our new Add-in, deploying your email signatures to all your employees is even easier. Directly integrated into the Microsoft 365 (Office 365) admin console, you can rely on a solution that will satisfy both your IT teams and your end-users.

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Microsoft Gold Partner,
Microsoft (Office) 365 seamless integration,
and Azure cloud-based architecture

Deploy email signatures
in only 4 steps

Create

Design on-brand email signatures for all your teams

Use HTML import to instantly generate professional, on-brand email signatures. Or choose a template and use the Drag & Drop Designer to create email signature templates based on your brand colors. No technical skills are required!

Request a free trial

Synchronise & deploy

Deploy the email signatures to all your teams with the Outlook Add-in

Thanks to the synchronization with your directory (Azure AD, or Azure local), all your users' information is automatically and securely pre-filled.

Publish the Letsignit Outlook Add-in to the users of your choice, directly from the Microsoft 365 (Office 365) administration center, without the need to install an application on all workstations.

See in video how the Add-in works

Best email signature management software

Enjoy

A seamless experience for your employees

The Add-in is then directly installed on users’ Microsoft accounts (Outlook Desktop and OWA), who can now effortlessly benefit from Letsignit across all workstations.

Bid farewell to manual email signature management as our cutting-edge solution seamlessly incorporates and updates signatures for each email your employees create.

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Communicate & measure

Add banners to your signatures for internal and external communication

Spread your communication campaigns in a targeted, non-intrusive, and cost-effective way in all the emails your employees send. Promotions, eBooks, news, recruitment, events, surveys... your colleagues can choose the most appropriate campaign according to their recipients, ensuring a personalized & targeted touch.

Then, track the performance of your campaigns to improve your actions!

Learn more about Campaigns

Brand outcomes for Marketing.
Enterprise standards for IT

You operate in regulated environments. Letsignit is built for that — every signature,every slide, every digital card runs on infrastructure designed for the enterprise.

Your data stays yours

We sync with your directory and push brand assets to your employees: we never read, store, or access the content they create and share.

Co-built with Microsoft

A 13-year partnership with Microsoft engineering: we co-developed our first Outlook Add-in with them, our new Powerpoint Add-in and we're building the future together.

Dual ISO 27001 & 27018

Certified for 4 years with the highest global standards for information and data security. Continuous audits and penetration tests. 100% EU hosting. Zero compliance incidents in 13 years.

Learn more on security

Don’t take our word for it. More than 1 million people trust Letsignit with every email they send.

Letsignit has been an amazing partner for the Office Extensibility team. They not only helped design, but also were pioneers in building and testing solutions using our new Signature APIs and event-activated Outlook Add-ins.

Juan Balmori

Principal Product Manager

Perfectly integrated with the Microsoft 365 & Outlook platform, Letsignit perfectly meets the needs of large accounts with disconcerting simplicity!

Olivier Lanilis

ISV Lead

The effortless integration of Letsignit with Office 365 has resulted in a high adoption rate of the solution by our employees. The signatures are contextualized according to our campaigns, and their profiles have become a standard service of their Office account.

Guillaume Mikowski

CEO

145 equipped employees

Letsignit is: easy to integrate, easy to manage, easy for users, and easy to use.

Alaa Eddine Elhimer

Tech Administrator

5,750 equipped employees

Deploying Letsignit to users and integrating it with Office 365 was very easy. The ability to sync specific groups from Office 365 is a nice feature.

Brian Menzel

CEO

Read the success story

When a new employee joins the company, I no longer have to worry about installing their email signature. I save a lot of time!

Cyril Darmouni

Associate Director

Read the success story

Letsignit makes it easy to create campaigns and manage contact groups. Its link with Office 365 simplifies internal implementation and allows for tracking of user usage. The separation of signature and campaign creation enables fast updates, even with multiple entities.

Rachel Pallamidessi

Digital Communication Manager

Key features of our email signature
Add-in for Outlook

An email signature that makes everyone look good.

Seamless authentication

No action is required from end-users thanks to transparent authentication linked to the Microsoft 365 account & connected through the Azure Active Directory’s multi-tenant App.

100% secure data

Letsignit integrates into the token validation process provided by Microsoft to ensure the security of the exchanges. All communications between the Add-in and the Letsignit APIs are made through HTTPS & authenticated exchanges.

Flexibility assured

Users can consult and update their contact details directly through the Add-in (with permissions), without altering the information contained in the organization’s Active Directory.

Automatically lightened signatures

Automatic adaptation of email signatures for reply/forward cases. A way to limit repetitive communications and reduce the weight of your emails.

Multi-signature management

Manage specific use case of email signatures & campaign.
Multi-languages, many job roles, multi-campaigns... the possibilities are endless.

More visibility.
More consistency.
More opportunities.
Less effort.

Turn your email signatures into a powerful 1-1 engagement channel for your brands & campaigns.

Select a time that’s convenient for you.
See Letsignit in action during a personalized demo.
Ask questions, tell us your goals, and see how Letsignit can fit for your company.

Deploy thousands of email signatures in 3 clicks with the Letsignit Add-in for Outlook!

Deploy email signaturesin only 4 steps