Download your free trial of Exclaimer Signature Manager Office 365 Edition by filling in the form below and clicking the Download button. This will start the installation process.

As this is an on-premises application, you need to run a Signature Manager Office 365 Edition installation executable (setup.exe). Just follow the instructions to complete the software download.

More information about Signature Manager Office 365 Edition can be found via the user manual or the Resources section.

For dedicated technical support, raise a Support Ticket and member of the Exclaimer Support Team will assist you with your issues. Alternatively, use the Signature Manager Office 365 Edition Knowledge base for answers to common questions.

Are you an Exclaimer reseller? Login to your account.


Outlook Signature Update Agent

Once Signature Manager Office 365 Edition has been installed on the server, run the Outlook Signature Update Agent on each client machine. The Update Agent can be deployed in one of two ways:

1. As a ClickOnce application from this page:
2. As a MSI file, available for download here

The download is a single file called 'Setup.exe'. It is a standard Windows Installer package. When run, it will install Signature Manager Office 365 Edition. Once installed, you can uninstall it as follows:

  1. Click the Start menu on your computer taskbar.
  2. Select Control Panel.
  3. Double-click 'Add or Remove Programs' or 'Programs and Features' (depending on your operating system).
  4. Select the Exclaimer product you wish to remove from the list.
  5. Click the Remove or Uninstall button.

If you have any issues, please contact us at or on 1‑646‑998‑9341 -- other contact information can be found on our contact page.

Trial software is fully functional for 30 days. To use the software after this period, you must purchase a license.

Installing this software will not affect your browser, system or security settings without the user's consent.