World’s first email signature Web Add-in for Outlook on the web and Outlook desktop is powered by CodeTwo

[Update]: This blog post was updated on May 13, 2022. The Web Add-in is now generally available for Outlook for Windows, Outlook for Mac and OWA.

CodeTwo is the first email signature software vendor to release a modern signature Web Add-in that integrates with both Outlook for Windows and Outlook on the web (OWA)! We’ve once again worked closely with the Microsoft Outlook Add-in Team and implemented their latest API into our signature service to provide seamless multi-platform integration. Support for Outlook for Mac has been added in March 2022.

World’s first email signature Web Add-in for Outlook on the web and Outlook desktop is powered by CodeTwo

As a quick reminder, we first announced the new add-in for CodeTwo Email Signatures for Office 365 together with Microsoft back at Ignite 2020. The add-in lets you add email signatures in real time as you compose a message in OWA and, starting today, also in the Outlook desktop client for Windows. It can be deployed organization-wide directly from the Microsoft 365 admin center and is available to end users automatically, without any interaction from them. No need to log in or install any EXE or COM agents locally.

The add-in is now generally available for Outlook for Windows, Outlook for Mac and OWA. Learn more

If you haven’t used our service yet and want to start centrally managing email signatures in your organization, get a free trial of CodeTwo Email Signatures for Office 365.

More exciting features coming soon. Stay tuned!

CodeTwo Email Signatures 365 is the first and only email signature solution that’s fully Microsoft 365 Certified (the whole infrastructure reviewed & pen-tested by Microsoft). It's an Azure-based cloud service that supports all devices and email apps. Our product was co-engineered and awarded by Microsoft, and has the highest user satisfaction ratings. With CodeTwo's ISO/IEC 27001 & 27018 certification and our proprietary 4-layer security system, it's the most secure signature solution on the market. Watch a short product video

CodeTwo offers solutions for organization-wide email signature management, data backup and migration for Microsoft 365 & Exchange Server, developed since 2007 and used by over 120k organizations worldwide, including Facebook, Samsung and UNICEF.

11 thoughts on “World’s first email signature Web Add-in for Outlook on the web and Outlook desktop is powered by CodeTwo


    • That’s the great part – there is no need to download and install the add-in manually. CodeTwo Signatures Web Add-in for Outlook can be deployed centrally to all or selected users in your organization through the Microsoft 365 admin center or via Microsoft AppSource. See our manual for more details.

    • At this stage, there’s no official ETA. We’re currently waiting for a few changes on Microsoft’s backend, to be able to roll this out.

  1. Does this mean the email message stays within Microsoft and does not go through Code Two email services? Similar to client-side mode, but with the benefits of being able to use it on any device and management through Azure?

    • Yes, exactly. The modern email signature Web Add-in works similarly to the classic COM add-in (in client-side mode), plus it supports OWA and very soon also Outlook for Mac. One of the biggest advantages is that end-users don’t need to install anything at their end- the Web Add-in is deployed org-wide (or to selected users only) from Microsoft 365 admin center.

  2. I would swear there was already an Add-In that worked in OWA and displayed signatures during email composition.

    Can you give us a summary of new features that might compel users to consider use of the Add-In?

    • We have developed another add-in for Outlook on the web earlier. It can be used to dynamically display server-side email signatures. Learn more
      The new Web Add-in dynamically inserts client-side email signatures directly into the email body, as you compose a message and lets you choose from available signature templates. Take a look at a short demo

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