...
Email Templates can be found under [Settings] > [Company] > [Emails] > Email Templates. This section includes all emails sent by the system to clients, staff members, and those added by plugins. By default, these templates usually don't have to be modified, but it's a good idea to review them in detail anyway. See Customizing Emails for more information.
Signatures
Signatures can be found under [Settings] > [Company] > [Emails] > Signatures. Three signatures exist by default and are linked to various email templates, however they do not contain any content and should be updated with information pertaining to the company.
...