Deactivated aliases remain linked to your account in case you want to activate them again in the future. Please note: It is technically not possible to delete aliases created with a Tutanota domain. This can be any of the Tutanota domains or of your custom email domains that you have added to your Tutanota account. Click on the three-dot button to choose the domain for your alias. A pop-up opens where you can create the alias you want to add. Go here in your mailbox→ 'Email aliases': Click on 'Show Email Aliases'.
You can also switch to larger alias packages. If using any of the paid plans, you can add email aliases to your account.
