Emails: Different welcome email for contact

If you wish to send different email than Client:Details:Signup when clients add contact to their profile you can use following smarty logic in Client:Details:Signup email template, to distinguish contact from client:

{if $client.contact_id}
  // content to send to contact, after its added by customer/admin
  {else}
  // content to send to client after she registers
  {/if}