     The recipient `#{inspect invalid}` is invalid.
 
     Recipients must be a string representing an email address like
-    `foo@bar.com` or a two elements tuple `{name, address}`, where
+    `foo@bar.com` or a two element tuple `{name, address}`, where
     name and address are strings.
     """
   end

            private: %{}, assigns: %{}, provider_options: %{}

  @doc """
  Sets the `from` header.

  Valid formats:
  * `"tony@stark.com"`
  * `{"Tony Stark", "tony@stark.com"}`
  """
  def from(%__MODULE__{} = email, from) do
    from = format_recipient(from)

    end

    @doc """
    Puts new recipients in the `#{fun}` field.

    It will replace any previously added `#{fun}` recipients.
    """
    def unquote(:"put_#{fun}")(%__MODULE__{} = email, recipients) when is_list(recipients) do
      recipients =
