You can easily set a default outgoing email channel for the inbox you select.

  1. Log in to Zoho TeamInbox.

  2.Click the Settings icon in the top right corner.

  3.Click More Settings, select the Organization tab.

  4.Go to the inboxes under the team section, click Settings.

  5.Click on 'Select default outgoing email channel' and choose the email address from the available options to set it as default for sending emails.