CodeTwo Outlook Add-ins overview
CodeTwo Email Signatures for Office 365 lets you set up client-side signatures (Outlook signatures) that are automatically added to emails in Outlook as users type. You can set up default signatures for new messages and for replies/forwards. Users can also manually select a different signature in Outlook.
Client-side signatures are added by an Outlook add-in that can be deployed organization-wide. There are two CodeTwo add-ins that you can use:
- New experience: CodeTwo Signatures Web Add-in for Outlook that works with Outlook for Windows, Outlook for Mac (early access) and Outlook on the web (OWA). This modern Web Add-in offers better experience and more capabilities. It can also be used to preview server-side signatures
- Classic experience: CodeTwo Signatures Add-in for Outlook (COM Add-in) that works with Outlook for Windows only.
You can only use either of the add-ins, so deploy the one that best matches your preferences. If you have already deployed one of them, uninstall it first before deploying the other one. Otherwise, the add-ins can conflict with each other.
|Modern Web Add-in||Classic COM Add-in|
Outlook for Windows
|Outlook for Windows|
|Supported signature mode||All||Client-side & combo only|
|Deployment||Central via the Microsoft 365 admin center
|Central via GPO or Intune, or individual by Outlook users
|How are signatures inserted?||Automatically (event-based) or manually (via the CodeTwo Signatures pane)||Automatically or manually (via the Outlook's Signatures command)|
|Who gets signatures?||Users defined in client-side signature rules||Users defined in client-side signature rules as well as other Outlook users1|
|Preview of server-side (cloud) signatures||Yes
|Disable users' default Outlook signatures||Yes
|Yes (Outlook for Windows only)
|Switch between Outlook (client-side) and cloud (server-side) signatures||Yes
|User log in requirement||No||Yes|
|How often the add-in syncs with CodeTwo services?||Real-time synchronization2||Every couple of minutes or manual|
See the instructions below on how to centrally deploy the CodeTwo Signatures Web Add-in for Outlook to users in your organization via:
Be sure to design at least one signature template and define users who should get it. See this article to learn how to do so.
Use the links below to learn how to deploy the classic CodeTwo Signatures Add-in for Outlook:
The COM Add-in works only with client-side signatures, so make sure that CodeTwo Email Signatures for Office 365 operates either in client-side or combo mode in your organization (learn more about signature modes). You also need to create and configure at least one client-side signature rule (see our guide on that).