One Email Signature Maker.
Total Brand Control.

On-brand email signatures
for all your teams

Create custom email signatures that reflect your brand across every team. No code. No chaos.

Turn every email into a marketing asset

25% more clicks, traffic, and leads. Launch targeted campaigns directly from your team's signatures.

Customize for every campaign

Every email is a chance to reach your customers. Swap banners, CTAs, and promos in seconds — without touching a single inbox.

How does it work?

Design

Create a brand-consistent signature without touching a line of code

Bring your own layout or use our drag-and-drop email signature maker.

Add calendar links, social profiles, CTAs, and more

Create my 1st signature

Auto-sync & Deploy

Instantly push signatures across your entire team

Set one signature for all, or create unique designs per department.
Lock permissions so your brand stays consistent — always

Request a demo

Communicate & Measure

Turn every email into a marketing opportunity

Launch campaigns and surveys directly from signatures. Track every click, down to the minute

Request a demo

The only email signature creator co-built with Microsoft

Letsignit deploys signatures directly to Outlook Web App and Desktop via the Microsoft 365 Admin Center — through our exclusive co-developed Add-in.

No manual setup : Signatures update automatically. No asking 500 employees to change their settings.

Total device coverage : Flawless consistency on PC, Mac, tablet, and mobile.

High deliverability : Our official Microsoft partnership ensures industry-leading security and email deliverability.

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Talk to an expert

Don’t take our word for it.
More than 2 million people trust Letsignit with every email they send.

In order to ensure global communication and maintain our brand identity internationally, we have decided to take advantage of our employees' email signatures using Letsignit. This has been in place for almost 10 years, since June 2022!

Martine GILLET‑ARAIC

Digital Communication Officer

3,000 equipped employees

Letsignit is easy to get started with, user-friendly, and customizable. The team is responsive and always pleasant when you have a question or need help with something. I highly recommend this excellent service!

Kim‑Mai Buiba

Internal Communication Manager

500 equipped employees

Letsignit is easy to set up and administer. Signatures look great and it tracks marketing metrics and click rates. It also allows for easy navigation when setting up URLs on our signatures. The value of this tool has been proven!

Danny Murphy

Partner, Technology & InfoSec

265 equipped employees

Letsignit enhances and elevates our brand image, making it more dynamic. With the platform, we can create both internal and external campaigns to highlight events or promotions.

Corinne Demange

Digital Marketing Officer

322 equipped employees

Letsignit is a tool that is both simple and powerful for standardizing employees' email signatures and also treats the signature as a new media. It can be used as a low-cost acquisition channel. All of this integrated into Microsoft Office 365.

Carole Benichou

Director of Microsoft 365 Division

Before Letsignit with our old signatures, we couldn't add banners or do anything else. Everything was complicated. Although some things were possible, it took a lot of time for IT to create all the signatures.

Elodie Mescam

Senior Digital Strategy & Marketing Manager

Read the success story

I love the ability to change signatures and ad campaigns with just a click thanks to Letsignit. We used to have issues with uniformity, but this is no longer a concern for us.

Luis Pontillo

Digital Marketing Executive

With Letsignit, there are no more outdated or image-format signatures! They are now all up-to-date and linked to our social networks, website, or specific campaigns!

Damien Marty

Information Systems Manager

135 equipped employees

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

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