Don’t tell the noticed problem straight to your client. Warm up your client first, through your newsletters.

Don’t tell the noticed problem straight to your client. Warm up your client first, through your newsletters.

Others

It’s much better if the client approaches you with his problem. So, you should indirectly reach out upon these noticed problems in your newsletters you send to this client. You should mention reasons and solutions for the problem. Disclose everything, explain in details, transfer the complete knowledge… Don’t hesitate. This tells your client that he(she) has the problem and “You can do it for him(her).”