Link in Email to join Annoucement List?

I’m trying to add a link in my email to prospective clients, so when they click on it, they will get a confirmation email to join my announcement list. there seems to be no way to put this link in, other than have folks go to my website first, THEN enter their email, THEN get a confirmation, THEN join my announcement list. Dreamhost was unable to provide a solution, can anyone out there help?

Example: Subscribe to my announcement/email list to get updates etc

To verify your subscription, visit this URL now:

this link does not work, I copied it from my dreamhost announcement list webpanel.

thanks anyone!