How to set up signatures to emails sent as / sent on behalf of other users?

Send emails on behalf of other users in your organization and also manage those signatures added by Sigsync.

Resolution:

You should have appropriate Mailbox permission for user’s mailboxes in Office 365 to send as or send on behalf of other users and to manage their signatures.

Office 365 provides few mailbox permission like

  1. Read and manage permissions: This is to set permission for users who can read, send as or send on behalf of mailboxes.
  2. Send as permissions: This permission is to send email from another account.
  3. Send on behalf of permissions: This permission is to send an email with both the account and mailbox name and also show they are sent on behalf of others.

Set Send as permissions to another user and send an email with Sigsync signature

Let's say User 1 has a mailbox and User 2 has the Send as permission from User 1.

While composing the email, User 2 must enter the User 1’s email id in the From address section so that it looks like User 1 has sent the email, and Sigsync attaches the signature from User 1 to this email.

Is it possible to add a signature to the sent items folder?

If the Sigsync Email Signature is enabled for User 1's Sent Items Folder, but the email is sent from User 2's account, the sent email will be in the User 2's Sent Items Folder. As a result, Sigsync service has nothing to update for User 1.

In Exchange Online you can automatically enable copying of the sent email from User 2 to the original sender i.e. User 1. After enabling this feature, Sigsync can attach a signature to User 1’s Sent Items folders. This feature is not available in an on-premise Exchange server.

Steps to Enable Email Signature in Sent Items Folder in Sigsync.

Set Send on behalf of permissions to send email as another user

Let's say User 2 is a user with Send on behalf of permission to send email on behalf of User 1.

While composing the email, User 2 must enter User 1’s email address in the From address section. The recipient sees the email sent from User 1, but on opening the email, the signature attached by Sigsync will have details of User 2.

Is it possible to add a signature to the sent items folder?

Here User 2 sent email on behalf of User 1 and the email signature attached is of User 2. If the subsequent reply emails must have the email signature of User 2 in the Sent Items, then User 2 must Enable Email Signature in Sent Items Folder in Sigsync Preferences.

Steps to assign Mailbox permission in Office 365

  1. Login to your Office 365 account and open Admin center
  2. In the Admin center navigation menu, select Users -> Active users.

    Navigate Active users

  3. Click on the required user, i.e. User 1, who grants User 2 the Send as or Send on behalf of rights.

    Select mailbox permissions

  4. In the user's settings window, go to the Mail tab where you can see the Mailbox permissions. Select the required permission and click on + Add permission.

    Add mailbox permission

  5. Select the user from the list and click on the Add button at the bottom to grant the respective Mailbox permission.

    Select user to grant mailbox permission



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