Access and assign permissions to the Signatures app

Once you're finished registering your Microsoft 365 tenant to CodeTwo you can start working on your email signatures.

You can access the Signatures app (signature management app) at (or click Signatures in CodeTwo Admin Panel). The app allows you to create and manage email signature and autoresponder rules from any device and platform (Windows, Mac, mobile devices, etc.).

On first launch, you need to sign in to your Microsoft 365 account and accept the required permissions. Only authorized users can manage signatures and automatic replies (out of office messages) in your organization. Learn more below

After you sign in to the Signatures app, it's time to create your first rule. See Create a signature rule or Create an autoresponder rule for step-by-step instructions.

Who can manage signatures in my organization?

By default, email signatures and automatic replies can be managed by all of your tenant's Microsoft 365 global admins. You can also grant access to the Signatures app to other users in your organization. To do so, sign in to CodeTwo Admin Panel, select your Microsoft 365 tenant on the Tenants page, and go to Signature rule admins (Fig. 1.). 


To manage signature rule admins, you need to be the Owner, Admin Panel admin or Tenant admin in your organization's CodeTwo Admin Panel account. Learn more about admin roles

Here you can specify users who can manage email signature rules in your organization.
Fig. 1. Here you can specify users who can manage email signature rules in your organization.

You can add individual users and groups (Microsoft 365 groups, distribution lists and mail-enabled security groups) by clicking Add > User or AddGroup, respectively.

Your users/groups don't need to be assigned any licenses in Microsoft 365 to become signature rule admins in CodeTwo Admin Panel.

To remove a user/group from the signature rule admins list, click Remove (Esig - Remove button) next to them. 

By default, the list contains all your organization's global administrators. Global admins cannot be removed to avoid situations where no user can access and manage rules.

If a user/group is added to the list, this user / all members of this group can sign in to and manage all email signature and autoresponder rules.

Nested groups

If you select a group that has other groups nested inside, the members of both the top-level group as well as all nested groups will be granted permissions to manage email signatures.

If you plan to assign rule management tasks to non-admin users, make sure the app registration options in the Microsoft Entra admin center or the User consent to apps option in the Microsoft 365 admin center are temporarily set to the defaults, as described in this article.

Inviting guest users to become signature rule admins

Guest users added to your Microsoft 365 organization can become signature rule admins if they are a member of a different Microsoft 365 organization.

To learn how to grant guest users access to the Signatures app and let them manage email signatures, disclaimers and automatic replies on behalf of your organization, see this article.

See next

Create a signature rule – find out how to create a signature adding rule step by step.

Create an autoresponder rule – learn how to set up automatic replies for users in your organization.

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