I am managing an email newsletter that is distributed through Lotus Notes. At the bottom, I have 4 hotspot buttons for "Subscribe," "Unsubscribe," "Forward to a Colleague," and "Archives." Subscribe and Unsubscribe use @MailSend to email me the sub/unsub request. However, I am getting a lot of people who click "Subscribe" even when they are already subscribed. I'm looking for a way to hide the Subscribe button when the email sender is my newsletter email address.