Before sending an e-mail, you can edit sender and To and CC. For this, before clicking send the e-mail, click on the "Edit" button that appears when you hover over the e-mail you write. The e-mail accounts that appear in the From section are only e-mails that you have integrated into Cubicl. You can change the e-mail account (From) and recipients (TO and CC fields) to which the mail will be sent. After making the changes, you can send the e-mail by clicking "Send e-mail".