
Easily deploy standardized signatures on Outlook
Enjoy a revolutionary experience to manage your email signatures on Outlook.
Letsignit was the first editor to co-develop an Add-In to manage signatures efficiently, directly with Microsoft
R&D teams. READ MORE
The Letsignit Add-In is a natively integrated add-in to Microsoft 365, which revolutionizes the deployment of
signatures on the desktops of hundreds or even thousands of employees simultaneously, all from the M365
administration center.
Benefits:
- Simple, fast and even more secure deployment of Letsignit
- Simultaneous deployment on OWA and Desktop
- No user action required to benefit from Letsignit signatures
- All Letsignit features at your fingertips
Main features
M365 SSO authentication: A single authentication method governed by the current M365 user session.
Automatic insertion of the main signature in the email: without any action from the user. With each new email, the Letsignit signature is inserted in the body of the email on Outlook Desktop and OWA.
Preview the signature before sending: view the signature in your email before sending it.
Automatically lightened signatures for reply/forward & multi-signature cases: employees can choose the most relevant signature and campaign according to their recipients...
Specific signature for internal exchanges. (available Q3 2021)
View and modify contact information: if authorized by the Letsignit administrator, the user can modify his contact information, the changes will be automatically reflected in your signature.
Upload profile picture: users can upload or modify their profile picture if the administrator allows it.
To use this add-in you must first create a Letsignit account. If you haven’t got a Letsignit account yet, click here to sign up to a free trial
App capabilities
- Can send data over the Internet
- This app can access and modify personal information in the active message, such as the body, subject, sender, recipients, and attachment information. It may send this data to a third-party service. Other items in your mailbox can’t be read or modified.
- The user composes a new mail.
- The user adds or removes recipients from an email.
At a glance


